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 0xb81b39ec197cae23c63e3d63f9fdc54a8f85ed996edc8fb82df7844ece9d9442. 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/bad205c8-025f-4568-b87e-e6b10661349b.json and https://artists.proofprofile.net/proofs/artist/bad205c8-025f-4568-b87e-e6b10661349b.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 0xfac82af4c0a06a0d18ad1f76d1bbcfc5d5bc40998d11a5a1728f544ecb0f1768. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/ARG991018313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c16de5f56714c8d96c55fac4f0f9a53c1d7cbe0e09d555e15659047728b1c04. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/ARG991018314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5e3b9c7b36d5f57809508d755783a53a37a1af0c66455b4957e610dfed3db9e. Chain 2 (Bitcoin): anchored in block 958401 (2026-07-17T11:10:25Z), 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/ARG991018317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x599e6482d0ec97a4ba1541b35b1fc788418a3c9bba414bbcd8ae74d0d2a45ec6. 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/ARG991018324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26ed6302ea4cf71c2bf40df517bff6dcc9f1d2899941d245c8bf1f087afc9695. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/ARG992045314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff710a565087a451d14fad20e17bd2f87c922ed1f852ad9cf6cc37af1a4aa37e. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/ARG992045315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ff450e491254b822bb1b0e5d19407096e0573abeca608d6f4ae445ca388e733. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/ARG992045316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x740f0024725edb78461a540d4b2b6c0558fd29b7fc19affe84c5a8ad44ebe118. Chain 2 (Bitcoin): anchored in block 958891 (2026-07-20T13:27:11Z), 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/ARG992045318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f0f42f7dcfe5b9a91f0ae5bd274497fda22f4403bcb206e00d39c1797e0b852. 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/ARG991018611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7129a0a5deabe0b99c1d787527159ac63696360f44a027bee4c724a7c319faa5. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/ARG991018619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79c81b7c307cc3a2f091ae1f54ed3e6d289b52a304b0973f228dd6c71c7047a4. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/ARG991018699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e8dc5e9c9875e7b4fb645e8ea6e581d7631c7efb17191646baf62b79636c827. 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/ARG991018701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6205fce8be9e1e63f726d5dc50c708764d6c8583c8b24cf7222894ac778ae2a3. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/ARG991018703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fef1a8287205aeb2ff41d0ed6192ab123991f370f547bbc5484640305f32ff1. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/ARG991018711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7d5ce0224f2b6ac2442ce257d63e6eb4be6e378edfb61ba7bd4244aa73a7c96. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/ARG991020447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedd6af1fd1ff68c01617dc1de0e70072aa289a02ed862050d64c2b019916006e. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/ARG991021073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8db28df51cf6e9fa6dac75a83693543ae21d0bc349cf2e3262782c49d281e7ec. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/ARG991021072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb76b42ac3ad1264cfbb8eb074c2436a6060912840e3820cfb2e7f2fa35d94a96. 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/ARG991021134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6b51d51838691eb66b400a3e849044a35d6c4da7480dc9fdee1f428330b0070. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/ARG991021783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ba33491764715a3449339c1e7cbdb0f571b5754fae2b1075f880ea6f78ee547. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ARG991019897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61249a85e94b5a8e9c5e70e41aecf38a61840e815e280da2df34f0764eae31e4. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/QZHNB2042082.
Es un Secreto / Dame un Beso / La Mas Linda del Salon
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9d61eeeba4b6a9c0fa31c7757218b7aef79a4b82c7ec565cfdbd5ca2861f48d. 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/ARG991026167.