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 0x45998b3f5cb993ef1cb2644d2351a86324f264446a064e6edb85c0c93ee7b50a. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/715ee06e-bdaf-4e68-be1d-238aadd7abeb.json and https://artists.proofprofile.net/proofs/artist/715ee06e-bdaf-4e68-be1d-238aadd7abeb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Paris c'est tragique (feat. Yaya Krisso)
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 0x981e9246a3c07d5654fd952afddf741c48f5eea4bb3f2ea41b55f72d77eff273. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-17T02:21:27Z), 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/FR9W12039837.
Paris c'est tragique 2 (feat. Yaya Krisso)
Paris c'est tragique 3 (feat. Yaya Krisso)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56b5222dc5eddf236c8118eeb086f751d1125040b180a844641e039b590ae638. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T06:56:35Z), 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/FR9W12039839.
Paris c'est tragique 4 (feat. Yaya Krisso)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda101cd18b87ab913a749f081351add0ef55ac6a4cc89e5e37f883bd3b3493ed. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T07:26:01Z), 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/FR9W12102078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x802a3a8bc371550e3b2caf13cf2016943386aea0fe7c1aaffc31dfe1c476ea71. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-02T21:02:00Z), 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/FR9W12102080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe86f2a5d7b333f6e2a4078e54d5b16698575d710b0a56cb10524f57adfd97776. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/FR9W12102082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc91df95627cbd69892572a251bfcbfd3f1ef5c86c172389faed7240c747953d8. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/FR9W12102083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x295471c7f07ef38c3eea53913d3a932b098656812aef8087ea580b835141f6f8. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/FR9W12102085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7037a715b6d3c7f1ac8311063a335b689e6a3fd6f405e8fdc08fb13b4cf1d249. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/FR9W12122062.
Paris c'est tragique 5 (feat. Yaya Krisso)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x176d506996581431fbc799c2f9898810833d17708b8a12c164fe9475e7dc9adc. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/FR9W12140714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86b902782c9a296012642f0d6dbddeab9770c56ebb5568b728036f83b17f510a. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/FR9W12214350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeab3d55b04ab5919fb242941c0869425967471d8b811a5314db6360b33af6af1. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/FR9W12220221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4988347ce2450f68d67d2773d58274504c04a3936f000eacf4509c604f655b56. 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/FR9W12220222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd64c37cc8ef12f702628103795765b423d45a0014bfa9fa31fc477e2652d2918. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T23:59:34Z), 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/FR9W12220228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1813917ccb5cb64ade2668d04d520810166594fc038a842a60415ebfc0c8d0bc. Chain 2 (Bitcoin): anchored in block 958666 (2026-07-19T05:00:30Z), 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/FR9W12220227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86b902782c9a296012642f0d6dbddeab9770c56ebb5568b728036f83b17f510a. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/FR9W12214350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ba2fe9bfabc234dfbf2bbfba8844f5006c2e436d523aa368d5b1adec59bbd3a. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/FR9W12240452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x610bace027002b2d97ab22781f03cc5ff7246499a7dc56540a6f8967bfe4f9b4. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/FR9W12251755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x500c368478728863b5dfee885f41b461c9d30075909759615d8dee8ddabde246. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/FR9W12247490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe17617160e93ec1fcb0ede6eb6653c092fd2bc8c2867828035a625af2ac1874e. 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/FR9W12247493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c4564a565140554311e51948ec5655a19c5e35188c9477c3297590d5e167535. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T17:58:04Z), 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/FR9W12247488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ec4994bf6a247778de84ce6b377ad65cf65ac002f2fdc3411bf6c7f60e71d09. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/FR9W12247494.