OpenTimestamps

Scalable, Trust-Minimized, Distributed Timestamping with Bitcoin. (This account is controlled by @peterktodd)

97DDKmdqUcdU5EViLYuWydBE72W9inSbJVmN62GyBAGS

[Cypher Tank @cypher_tank]

🏆 Immutable History: 3rd place in the Cypher Tank Non-Profit category.

To preserve history, you first need to protect it.

That's why we brought Peter Todd and the Immutable History team to the Lugano City Archives, where OpenTimestamps, Peter's own protocol, is already used to timestamp records and strengthen transparency.

It's a powerful example of how Bitcoin technology can protect public institutions, historical records, and ultimately, human rights.

This is why non-profit Bitcoin projects deserve funding ⚡🦡

[Peter Todd @peterktodd]

😂😂😂

For my personal data like my photos collection I use a combination of git-annex, PGP signatures, and @opentimestamps

The data gets backed up fully offline media. Including Blu-Ray disks – impossible to hack.

Sounds like my setup is better than Romania's...

[Peter Todd @peterktodd]

Canada’s proposed Bill C-22 is so broad that my @opentimestamps calendar service could be a Electronic Service regulated by it. One calendar is hosted in Toronto.

C-22 requires metadata retention up to one year; my calendars delete IP logs after two weeks.

I will not comply.

[Damian Mee @meeDamian]

@Jeremybtc It would be great if @x used @opentimestamps on all their posts. It would cryptographically prove beyond a shadow of a doubt that posts were posted when it says they were posted. Probably futile, but cc @nikitabier.

[OpenTimestamps @opentimestamps]

Good reason to use OpenTimestamps to timestamp your git commits: if GitHub, etc. does something insane to old commits, you can easily spot it because the timestamps will be wiped out.

Also, PGP sign your git commits locally!

https://t.co/fjjcxs9BsZ

[Tom Elliott @theotherelliott]

This GitHub incident is insane. Merge queue commits have been reverting previously merged commits at random.

This not only breaks the mental contract teams have with Git in general, but is subtle enough to be really hard to unravel after the fact.

https://t.co/C8vbDGqdmC

[abdel @AbdelStark]

@AdamBorco @opentimestamps Maybe you should read the paper, because yeah, exactly one mitigation I mentioned ;)

[OpenTimestamps @opentimestamps]

The Bob calendar is down right now because it's out of funds to pay tx fees: https://t.co/lXptPPpIHY

If people can send funds to bc1q83zmvtfks2dnvqfgcmxme24kah602cxr59h5v7 to get it back up that'd be much appreciated.

[Simple Proof @realSimpleProof]

New blog post ⚡️🎥 - Rewriting History is Over: How Rolling Timestamps Make Video Footage Tamper-Proof
https://t.co/ASPSajeWLZ

[OpenTimestamps @opentimestamps]

https://t.co/uEELOamSEH

@bellingcat's archival tool for social media posts, videos, and images uses OpenTimestamps.

YouTube, Twitter, Telegram, etc. won't provide a signature on their data. So the best verifiable evidence that an archive is authentic is an OTS timestamp.

[Giacomo Zucco (Bear Market Edition) @giacomozucco]

Historical reunion of the "Merkle Brothers" tonight at the @SatoshiLugano!!! The @opentimestamps OGs:
@RCasatta and @peterktodd!

[Bitcoin Isn't About You @brian_trollz]

.@internetarchive why are you not using @opentimestamps?

We are now in an era of seemless fabrication of content. Thermodynamic impossible to forge proofs of when data was first recorded is literally the most important thing on the internet now.

[OpenTimestamps @opentimestamps]

Yes! That's called a random beacon: a number that didn't exist until a known time.

However random beacons can be tricky to actually use in practice. For example, if you include a random beacon in a photo, it only strongly proves those exact bytes existed after the random beacon date. It doesn't prove that the overall human meaningful content of the photo was created after that date, because someone might have just used Photoshop on an old photo.

[Peter Todd @peterktodd]

Awesome! Someone finally collected this bounty: https://t.co/lOTCwbzF7h

[Simple Proof @realSimpleProof]

Listen to @RubinReport sitting down with @carlostoriello at @PlanBElsalvador to discuss how Simple Proof secures public records with immutable timestamps.

https://t.co/zShcOtsvNp

[OpenTimestamps @opentimestamps]

Triggering some Solana degens for science. 😂

97DDKmdqUcdU5EViLYuWydBE72W9inSbJVmN62GyBAGS

[OpenTimestamps @opentimestamps]

Interesting project!

https://t.co/vGQ1W1EAnC

[Project Timestamper @projtimestamper]

So our independent work at Project Timestamper has been to digitally timestamp these 86 million individual recorded tracks to anchor their authenticity. We embedded these timestamps on the Bitcoin blockchain using the OpenTimestamps service.
6/

[iPath Solutions @iPathSolutions]

We just contributed to The OpenTimestamps Calendars on Geyser! Creators using Web3 COAs with OTS should consider this: https://t.co/36uugI6gmU

[Peter Todd @peterktodd]

I was renewing some domain names and noticed that the @opentimestamps domains were getting a bit close to expiry.

They're now renewed until 2035!

OTS is here for the long run!

Of course, that costs money. Help me keep it running for another decade: https://t.co/gGzfmOCqnf

[Kevin Rivera @kealrive22]

Another major highlight:

The Ministry of Foreign Affairs (@cancilleriasv) and the Ministry of Environment (@MedioAmbienteSV) have begun protecting official documents on the Bitcoin blockchain, using @opentimestamps. @carlostoriello @realSimpleProof

This is digital sovereignty in action — transparent, immutable, verifiable.

https://t.co/MBg4RJlDwQ

[OpenTimestamps @opentimestamps]

RT @peterktodd: The E Salvadoran government is pioneering the use of efficient, @opentimestamps based, Bitcoin time-stamping.

All governme…