1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d819b86071e6f03faa2a7443de936004086ca39f268486a3a9817c416fb1547. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d4c1244f-485c-4b59-bccd-b66d7addb962.json and https://artists.proofprofile.net/proofs/artist/d4c1244f-485c-4b59-bccd-b66d7addb962.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
coulou's cafe number six, the progression felt like a soft slide into some pillows
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf15502a5b41657f2673c7de1ec5356a8ba57eec477cf1a8ceadaec3baa68bba4. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTBB2427711.
i recorded the seventh coulou cafe at home in california on a small pocket trumpet i got in japan
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc68ab2d8ee18530e1f869b5deb0fd956cfae0710c6714de54bc2cc039d01875f. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTBB2427712.
coulou cafe meditation number eight, glad we've made it this far :)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a0f545ef50eff5ba25055f3c315e1b5be9af3e2ee1b2d42838c6ae37a9057a9. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTBB2427713.
the ninth meditation, i almost deleted this one because i thought i did a bad job but it's actually my most popular cafe yet... funny how that works
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66d8a36964d6220659fcd0812aa602424c9842e1446ab8900e9489f1f5e2008d. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTBB2427714.
coulou's cafe meditation number ten, im still learning, still growing a little bit every day
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28a6d07b5435ba11fbc41521dd655c4664827a3ba0ee58a08ce5523b14f9387b. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTBB2427715.
i remember when i recorded the eleventh meditation it was so so hot that day
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd96cc049faed80e47132f32fe8c515be979698c128046dfd95a6222a63d83b13. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTBB2427716.
coulou's cafe meditation number twelve, writing out these sentence titles makes me feel very free from all the crazy made up music rules people follow
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfe0cbe17722ee381106fe049122a5f9265b3a1092b40052df3082976e9a8cbc. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTBB2427717.
thirteenth coulou cafe meditation, remember you don't have to assign value and judgement to everything you do, some things can just be
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14a79840385e7590bc9acde2916917e1c87fd3abc40b66ecddb059492b395ffb. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTBB2427719.
we've made it to the fourteenth meditation, i almost deleted this one too, im very glad i didnt
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e573b1678715bf1bfebc067600cdcd69dcdbf0546fd7cbee638407b5a818c56. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTBB2427720.
coulou's cafe trumpet meditation number fifteen, this one was a reminder of how healing this project can be for my own inner peace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42b9cdb9fa733402b7b893d07ebe818eed8b3fc75c783a27dd7e8456cda864a0. Chain 2 (Bitcoin): anchored in block 958689 (2026-07-19T07:11:11Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTBB2427721.
the sixteenth meditation, recorded alone in a beautiful cabin nestled in the woods during a cozy rainstorm
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec089f6dd2a448e88f10737155dbb921bbb56ef609c00a340fa86a16c0a2e316. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTBB2427722.
coulou's cafe trumpet meditations second edition
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf16719951a90015fdd7b050028d26eb07616b055f236cda7daab558c54e71922. Chain 2 (Bitcoin): anchored in block 958827 (2026-07-20T07:56:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZWFP2448778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab3ad2692af88d092cb709a40cbdf6a88ee24c7709bae8b76f2df70507788d15. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZWFP2448779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5908e216129a37547cc8903ec190ed95d64abba72889e0e79fc8ecf970dd248b. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T07:40:01Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZWFP2448780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2210ef2154cf4013562c1a210940d232883b104f1e6acf39871b4c3fd808a4b5. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZZ7Q2421757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe14ab5ddc1f633e72632eeb49d4ffc817a895a41bba2aa995af73a0248e3697a. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T16:25:36Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZZ7Q2421758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9e845493b5e0abf5011531e80900001f9d5920ce6d40506d53061f46fb89f9f. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T00:35:28Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZZ7Q2421759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19e27017d9959c15f2e69f47990334de9a594a29b782c65532ea047799eb6d61. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZZ7Q2421760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6aa91c54bd6d5beac36dcf12b016c871bf2ae801a01e8cc652b90cde9e99bf9. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZZ7Q2421761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb46ea933269879921389f9776333c519174c8a25dffe0fb43e406660b46425b6. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T07:01:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZZ7Q2421762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a7d31743cca7944d92942fc104ce9ff19d7f497bfc56973f7e018ed2adbad47. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-22T00:09:06Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZZ7Q2421763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7423cd09e41491df814c0532a5a3ed930a5f1603eb598e67b1cf11f670369a93. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZZ7Q2421764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78c38ff06c62d2938917ea90d65b987beac5b582870ee794007011b0eff059d8. Chain 2 (Bitcoin): anchored in block 956430 (2026-07-03T02:22:42Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHNC2578583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6110a6b5fd494753137e95103ee23bc6f63e55a7cd12d4c940ac69fa2148a172. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T04:29:18Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHNC2578584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64f74c0354db801529523bf817afd306e43b29e019ed602f1197118cc46350bd. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHNC2578585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x988c9984bb382dc2abfcac64adf510ce453d6730ed61c80a741b9b9408010c83. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHNC2578586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3431c4890add9d33cea6c2713f62ab5486f6db7a4053886542e37b793f705c23. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHNC2578587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x331c064f439699f82a2cf76ba46761372b83ef3961fef25e94e46ebd060529ad. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHNC2578588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb90d7dd935ab6350c79f750f69df73cc410c07f7ca1c43b40d70166ab0695b0a. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHNC2578589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x993927f387a60a4880dc1d290759c5dd3d2a0a6c54c5a5298f69f82acd843933. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T23:55:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHNC2578591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a378aa6131df94dd96965baecd49280f7ac2e2d17f573d30c949748afc623e3. Chain 2 (Bitcoin): anchored in block 959096 (2026-07-22T06:34:50Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHNC2578592.