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 0xf53e2b321232a91261ce4077835a85b43bf304f0ce4b88e118e0c5f70fafaa48. 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/2889a1fe-60ba-4cbb-8d1e-51822b291e75.json and https://artists.proofprofile.net/proofs/artist/2889a1fe-60ba-4cbb-8d1e-51822b291e75.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Aunque Digan (feat. Maxi Vargas & Bubaseta)
Jah Is My Life (feat. Movimiento Original)
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 0x45fdbb4b35c4a2daa07a63dce965d6a91feea517ca58ab0d394d233e0c86cc77. 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/TCACR1601298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafe395f2f7a858a757156672d2968d286fe7fa581bd753016f8bd58454d4f505. 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/TCADF1756957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90b19b1fdb23a494ebd9bdcdb718cef8f8e9fd3183d405f05778e979c0b67465. 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/TCADJ1729190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d8af3beb7b178a13d5462ceba77825f6a755b941b2fbf346b7ef82eec071394. 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/TCADJ1729198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddd2f1849d6dc3be1d06cb6f87a4963a446f0932bbf8abd44a629c9c64539cca. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/TCADJ1729218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf46f99218ed4c613e30b13514382a27feb7e8d089d320ca76cc7b37e7b2f6a9d. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/TCADJ1729222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf01069efcedcc4301f82f17f02ed317e4db49b814683fac8b2dc42459c0e64a6. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/TCADJ1729224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3ec530360873fcaf877276a7b00b4bcf9de5769f463106c35604e2b2e9cf8d9. 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/TCADJ1729266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2986d7f7b0884c53233c59491433adf3208050bc99d3d2d96843774e4d4fee5. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T08:14:15Z), 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/TCADJ1729267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07e143de11bce8969c24bd8164413859573f9089ad22d150db32d2486195e8d6. 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/TCADU1832570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92e3e35d7c39f33d6b548bb55a6c4b33709ec95ae1c288ce5c882a1c81bcc695. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/QZHZ42151422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd638de7c293641f4be4f10c7ddb58b2752324bc38f629057cb54af1ff61c7255. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/QZHZ62205843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb38d8c14f426f2628b682577b7acb8064c40196eb90ac9f07a52fe72c4533fe4. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/QZW9L2292446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ea9b90ec6b550713c98a0c752cd358374ef907df400f677823d93e58912611d. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZZ8A2463027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3a5654498af6d94ba0c5568ce4cd3b67308d40d4e0067dc7d133aa9420dff94. 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/QZTPX2418424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x409b41a1647de1da5384a799a0b44e19f8879d9c6628118ea96b2beda79d1ccf. 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/QZHZ51951425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79149551b7820cf2d5ed7d346f51c2f4bba3bb78d520db8aa158b5b99668f8ce. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/USL4R2013696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a4b74068bc684f513df1326f63c9dc1e1f352c9d85323d20c2d01b837a90634. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZK6Q2285984.