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 0x2c9488f8f38b1da14a5ff88e48a8b9e566016c8489155995f56e0d06bb6f4095. 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/3de1fb31-e8a9-4c8e-aacd-b64be6ac11c2.json and https://artists.proofprofile.net/proofs/artist/3de1fb31-e8a9-4c8e-aacd-b64be6ac11c2.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 0xcc2a39607b06e2182696363f8af3095cd7d8bdc3e94601ca5e2a381db277ae44. 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/CA0RZ1500043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaa2d3f2ef6be7b1839801f9b882061535d61520700094cb6e635aa30a65af8a. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/CA0RZ2000031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x661ffa00d925979f2f0dbd0d7f0281680032a4d5f98d8f078aa8e3b9473ebce5. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/CA0RZ2000121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c2a482372b699802c67ae501bfcc5fa785f02e7c49d29f51173d08ee6647f36. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/CA0RZ2100152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c41dcc88f6a501100ce6ba3fce587ae63087c5c17e37c21d629cb236b6348f1. Chain 2 (Bitcoin): anchored in block 958625 (2026-07-18T23:11:57Z), 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/CA0RZ2100153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe54b83bdd4ff222f4325ad580ca0cce1d55ec94656dd50de8bcaf1f8b201a2d7. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/CA0RZ2300050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf02a56b00bedec6166b3ba490743d86e97ddd5e753b52c1ef7198ee583028ff. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/CA0RZ2300052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66196c532cb7ff13c2e2b69ed139ebd0b2450adbb0cbf1ef48fce3d897175c43. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/CA0RZ2300053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42bc927c1dafad9618a6800bed0d13faf414431dbb40d503759340edf8dd4fcc. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/CA0RZ2400129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f1fabeff751409216703afc57e7e17ae52dce47f0fa6598a51ab5d65095e792. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/CA0RZ2400130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf468e96e3944ad845f54cf9e14d2d5c0678a3b9b5ff162adba1f7daf6f6a1402. 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/CA0RZ2400131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae77f4ed8dd7bb0938db1e464b2102747dbc5331c533c55e9735f1aeefe68f7a. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/CA0RZ2500012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf78a675cc1131027343df76e9a5373a4f9624d8ba18be6e82aaf6c204005930f. Chain 2 (Bitcoin): anchored in block 958873 (2026-07-20T11:48:10Z), 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/CA0RZ2500015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9cc324eda8f4c378e34124ee71a22335cbc901df0dbf2ff1ca13c2786bd8181. 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/GBEWA1904131.
Never Really Get There - Gerd Janson Remix (Mixed)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ab259f3deacca1b7f1c570fdc64d08ab986f7ae744fe26e9068d5d49fac8534. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBEWA2102354.
Never Really Get There - Gerd Janson Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1df5589d6186608ea92758d2f9a53737575114f4bd013d57563c58f125c7928a. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/GBEWA1910140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ab58ae339316e34efb19f929ff2f4180a1f7a8e413fc735e74c143c810566d2. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBEWA2400372.
Memories - Jesse Mac Cormack Extended Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba8ec44974ee1e1d0b0aec40f3e82a4a2d88fcc22af2bf73696fad68cdc172fa. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/GBEWA2400373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x059be8175e9126dd2abf1f81ad281e798a0fdff2148bd51abeef684dc077989a. 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/GBEWA2300220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1df5589d6186608ea92758d2f9a53737575114f4bd013d57563c58f125c7928a. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/GBEWA1910140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc48460a717eda7c71a02df661ea8c9160f4697e93f4c704a9cc31989e35d934. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/GBEWA2101344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa094b0a6f2a7d3237b08896f9f7dc87f1b58bcd331c24ced1036c94e2546482c. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/GBEWA2103191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe3f8e09390103a8be7c966fffa6ae3629fda206d3216896d3293a67f30bc014. 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/GBEWA1905564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bf961dbcdaca52a2068848ebba017ce0a9c1c226073433da908d5b96b2a7f5c. 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/GBEWA1905557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x059be8175e9126dd2abf1f81ad281e798a0fdff2148bd51abeef684dc077989a. 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/GBEWA2300220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x059be8175e9126dd2abf1f81ad281e798a0fdff2148bd51abeef684dc077989a. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBEWA2300220.
Never Really Get There (Gerd Janson Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1df5589d6186608ea92758d2f9a53737575114f4bd013d57563c58f125c7928a. Chain 2 (Bitcoin): anchored in block 960111 (2026-07-29T13:21:01Z), 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/GBEWA1910140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe3f8e09390103a8be7c966fffa6ae3629fda206d3216896d3293a67f30bc014. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBEWA1905564.
Never Really Get There - Gerd Janson Extended Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf117cf53f3ce9c173d8a62b8f08e34c0f8f710a44f7d932617d1ad21aaec18ca. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBEWA1910141.