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 0xf02b51642b94459d944b40da9ee94c795609562f7661d3b91aa56eecd9f10648. 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/90f1153a-496a-4e2d-807b-673d14f8dd6e.json and https://artists.proofprofile.net/proofs/artist/90f1153a-496a-4e2d-807b-673d14f8dd6e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
For every man saved a victim will be found
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 0x7f25df5b733002f100f998c957e7295b7da2fed5b2ff1dfda7263a7edd8f432b. 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/GBLLT2154047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f6fa659a9d71b18f2a73436bb5da11505c0cbf75b6869b80b7c07d292f7bd4c. 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/ITP842400194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafd9ce15c1a35d467178b63e59af970e0756e15e9f4f1a2466c0fc2a6240c394. 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/ITP842400195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf77c87634b6f3aca3bd5daf4b184e7f6ba6b2e43d023ab3f7bcb81f912a17b8e. 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/ITP842400098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75398ee6345e5be3f935e6a0f8735f1e1dce9839bc8eb52617b990ea27cdda3b. 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/ITP842400196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dae104ee8b1955f67ef6c20042e9d858b0c6506148006c4193d05aaac11b65d. 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/ITP842400197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4adef9e32f708db56f25c21fa09ed0bbd4df307c87c343b037e9cf29c60b8c78. 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/ITP842400198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b5faddb1a9fd0880487944f82e17d78965917b61d2d25d99e2885c35e475ea7. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/ITP842400170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3123540652aad9e5d7161941ad8dd4c05877b89d4cc30260b9158f4120697561. 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/ITP842400200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fe1286f261f801a5d2145eb0fa818531aaf2d64b79590a4a3ad30fdd29e109f. 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/ITP842400201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd300363352deda8940b1cfb969a1156686d046c46b763274dc9d4cd679f0cd46. 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/ITP842400202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d37a2346466d3c8873a856c808cd2c3fdebe27c8283ce83d8872a9d5f29371a. 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/GBCKK2370313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc37a8eddd5fbeae98152aa790d65485e04408b273fd2d3559da2cd98ccf1000a. 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/GBCKK2370314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ef1f653e99813068e52596a93a154fc69f5128194ce9bbb896643c24de2465a. 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/GBCKK2165201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9410356b7556ed61afd8a9a0007c4ac661ef8f32c83992268775e69e12f229f3. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/GBCKK2165202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd940b8ba9cebc0ea30264d697c5fed31833a5a5055122dd3a8eb540d86ea510c. 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/GBCKK2165205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6aa5fb117b10dfc82d8a34177e6edc1557a3ba25620ad97e8fa04f76cdb32c22. 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/GBCKK2478311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d37a2346466d3c8873a856c808cd2c3fdebe27c8283ce83d8872a9d5f29371a. 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/GBCKK2370313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05900706a8c748464c572f518bbb5a909c5cf1269f603c35b3c123f91044320b. 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/ITRWL2300046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b232809fcf50a088bafb5f13fdd6106b25a55954f522d9852364da0efca9c10. 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/GBCKK2478301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a7139cf0d810d7185dc4412f54b48e2a018e3eee5965ab8efa8ad0e43ec3666. 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/GBCKK2478302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8db56aaa60a4e0d7e22452806eb7c5c469278143de08eb322855dc863f01e632. 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/GBCKK2478303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19a280141c39ee0b6d63964aa4d7bbdad9d2e8962415edd7cf38c8ae11d06a3a. 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/GBCKK2478304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa0abfe3a895f26da6c4a8e561d1b13404d476884e98ae99b0904616d64d897b. 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/GBCKK2374801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1279ad3636ad061e9d777e853341699eace77855a70836a2238925072d13f35. 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/GBCKK2478305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2e7eadfe15c38dff4c603f3da72929206421bfe1fc1fd24a7228c1cc874b8e1. 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/GBCKK2478306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x013ed337653530d5795e76bf4745a4e5a9a563185f1c2d67c98c997ec183722d. 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/GBCKK2478307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6e4e0f661bf42fe57f0af88c000a52eaac675f342ad33fffed80ab3a28046ad. 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/GBCKK2478308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6aa5fb117b10dfc82d8a34177e6edc1557a3ba25620ad97e8fa04f76cdb32c22. 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/GBCKK2478311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe28becd81020bc0cb9d619225e928630612e8d3ddef8fb48a38f75dcf37c0586. 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/GBCKK2478309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1500de7c7ffe52a6db7d6a157dd89653d6449a49c3affbc62efebb76e0216aeb. 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/BEC291737008.