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 0x8ec9fa96122399302f1133a5c4eeee6e3bc6b78f6ef630ff2d016884c9d50238. 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/2809598f-15c1-4867-ae98-0ee9694c1cfb.json and https://artists.proofprofile.net/proofs/artist/2809598f-15c1-4867-ae98-0ee9694c1cfb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0xde1b66880284a7db051c076f1df563aeb7839cd1a9ef5910ecee06fac5a1c9ee. Chain 2 (Bitcoin): anchored in block 958197 (2026-07-15T23:32:01Z), 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/GX53U2099528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x489df6df0e493646224c5a0eeed11a2044d32c7d966334c8697d13b78fb748b9. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:25:42Z), 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/BK4DA2214506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e2fcd89722a469f32f8e8cbf1f38d26bfc2b0a9c976743b643fc96e8fa52d24. Chain 2 (Bitcoin): anchored in block 957540 (2026-07-11T08:19:50Z), 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/BK4DA2300905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ea17623aa40652a4a32d4d44da6d13968f29818f9b68cfab5aadfc72539cc35. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/BK4DA2302202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae6af5a82b121e0f9ecc43182d76382435e84549563768bbc2c93230a3f033b4. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:00:27Z), 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/BK4DA2307048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5ebd7cb63ae03195e65c6964d2552ffc8b197227ff5b050106cfbd9efd62222. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/BK4DA2321669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99d3cbac6f66b81fb0aa3926757d5d46aa6f054a2ad666f925c985521ab5fbb2. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/BK4DA2436401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99d3cbac6f66b81fb0aa3926757d5d46aa6f054a2ad666f925c985521ab5fbb2. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/BK4DA2436401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a9d69f546ad97d4b09d9940e5674794ea5c0d0cf0a39b16da9ab5cb7778b53d. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/BK4DA2321668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4666b5cf44da7b5509b1e471b1b671c895fef85d97ba9b32b7659e46252c9fd. 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/BK4DA2410661.
Scratch de Versos (Versos Bajo Llave En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27af54b156c573302263a47291a63a0924b7568caf3d682392c2962f622c1315. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/BK4DA2448733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8ff79e917cd8d54177f34fc7f68e0af083486084f072ef77412ec58d0133944. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/BK4DA2448734.
Viviendo Adrede (Versos Bajo Llave En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9437ee945b8b6c7e94a83308fee8f790ec98289f6a65a2f20c280c41794a815e. Chain 2 (Bitcoin): anchored in block 958116 (2026-07-15T09:58:49Z), 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/BK4DA2448735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x534b2370ebe2e44a8892221bd960992b90f3ac0abda2f4d94417b3460139c785. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T17:54:19Z), 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/BK4DA2521221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0351b6851812a4b8a1796bb535bdf0c996e67b6c282b1eec98fb77a1d65528f7. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/BK4DA2511648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20a190d8f656612e4fe7713e73d98fae3eac8da25b35df74db0623040acf7357. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/BK4DA2531535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x534b2370ebe2e44a8892221bd960992b90f3ac0abda2f4d94417b3460139c785. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/BK4DA2521221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0351b6851812a4b8a1796bb535bdf0c996e67b6c282b1eec98fb77a1d65528f7. 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/BK4DA2511648.