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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b83961128767d5e93377e249570526fc955147922ff9d2bd41341a7888f716b. 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/ece30791-d2c5-4ec1-849b-5d293539fc87.json and https://artists.proofprofile.net/proofs/artist/ece30791-d2c5-4ec1-849b-5d293539fc87.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xada45b49d8622f665666b665095bda3d8933350256570f9a7ea44ff9f3c671e8. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/TCAEW2090841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9133d0d0c21b6f6a2581b27c4b0c38979cc08e679b97898cd6fa93357fba836. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/TCAEW2090847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc482ec9ac78737ad38cbcc743b4471360db83c45f2eee12ff2c7d7bcf36fd2e7. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/TCAEW2090849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa3eb5def42603e3aa1872be4484ccf942077fdf8214ef24c5676b769abe1b44. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/TCAEW2091191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb97a894d48390005ec2751328aca522a46cbf403c6d507b3a4fbbc8e633864d3. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/TCAEW2091208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b5854fabfc668853c9e94262aa415825cdb410f4ef11fa2272a1b5be11d0183. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/TCAEW2090872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2585f5e17e02b757d49b4d6ee5f8ef9e39b884b6df6093909da049c54ad105d. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/TCAEW2090886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x452f7535781626269e4eea9fd98cabd63c987b804416b8ba8b90fd2b9b4979e9. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/TCAEW2090890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b76380211e88eef5332b0ce0c9bf2371d23564340c0811209d5f1366a913f7f. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/TCADA1734904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x810e0722febcaa833133a3af3772a228361a41248007347f1d7c22d929d9cfe6. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/TCADA1734913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4000c4ddd3bb554e9696773c1b8852c40f7bbe06cfd5700b963a3df02835b8a5. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/TCADA1734915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0c74abf433f6ccc29c5fe50fab9843c33ae312be50221ae83e7a5956733fc4b. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/TCADA1734917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1d64226a2a2f1a05b13bd639ebcdbe704eedffe1bdc30817f53fb86723bcead. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/TCADA1734921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3da780e52fe9c51db0567d174d6803c99d8c2950930090bf780c95d4daae78f. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/TCACP1640083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb55132688c3ba2883e1ca889e4b429eb9bb779eee0e416f88dd4e44607b1817. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/TCACP1640085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x635923f8d7315c733118be6edad0e84e3c36f95c04b92f3a5fe400387351303c. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/TCACP1640087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3f041e2e40ffd973f9e17c3b556bf4f9e4c1e22737fc7741a71724a41cb13c0. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/TCACP1640090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6950e73166cdd930544e52be10d90739f10b8024a6966cbe5fdb8aca5f0d3ba. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/TCACP1640091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6dce89385aceb1d4a20f6d00ed5d2899fc2f11bf01fa6db479798b92ba0b037. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/TCACP1640094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x628d7283c92845ed0ba44a0852751773a551dc445add8e4fe07e1669acca495e. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZGLM2454930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3de3678598f19c83a31a298c6e60a45cf43a6e50a281d5c2fa46132dd8fa014e. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZNJV2405761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc3a983f5b051b18685a4a259c408d522320d21d1297bd5aa6f8ad1de0f3994f. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZNJW2402839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3de3678598f19c83a31a298c6e60a45cf43a6e50a281d5c2fa46132dd8fa014e. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZNJV2405761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79748078c7f6e09341d6619279d5d78998e0f76fa522be7ff954073f08f74325. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/TCAHH2360137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b44256c386c6e99e562f4b07cd5aac0f0e8eb0c8c91f3a376fd2f366b8d791d. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/TCAFX2166687.
Cuando Te Vuelva a Ver (Bachata Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfba0e5e2f0502a7a6983e7d81ccc85cbf35665e0e0fd151ef045aea55eebb03. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/TCAEZ2071890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e9b58be52e90033bdb871e2c3a8694e97153f3072d46b4dbba58b8f6a6986b6. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/TCAEU2010179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97e4b70026517b1866b8b48866e24bfb60aafb4e26c273d21eba8cc16d7c7263. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/TCAEU2010271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0132d6ca65a915e68484dfe69152e8dd95f56b53c694f58d7ea6dfa3e3166bf. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/TCAES2012086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81c9c7f2fc85d5335da79fa60d5258471536abf9a09ca523ae7aea2e968afd42. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QMBZ91916305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73f718fd5271d1e7f233fda339ef4a4559e20070dcdf5e5d668ca91f5e1e9609. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/TCADY1878579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e4cd8074c5dc44ddb02bdb80705c239b71a7ac52a0396d28a20f9556a81fef7. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/TCADW1888089.