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 0xfbd649a2a66d9c9eb8426617e3d31bbffb6584275dc73c49fa24b8063c6f3fd4. 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/1533263a-806e-480a-85a1-c70172fe4a65.json and https://artists.proofprofile.net/proofs/artist/1533263a-806e-480a-85a1-c70172fe4a65.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 0x5dddd592260bcd6e0d102e5927319535e69c8d29a7a29ad24387bbebceb5812a. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/NLCK41087595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x424064abfd3e57f8fa642e4c17d24f6c1734b8652bfd2cdcc5d774d324f8d693. 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/NLCK42221611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf11c3e76d200ea4c8c9f6de77b5b05a97020c7226ac0d48a93aafb32893c11a9. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/FRDKW2313787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc37aba275e32c9f4a8422e494b8cf20c88c9f01d2a8376201af7eae0da70e841. 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/QZQAY2490221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe28db239f68113fef1372778a4373b66c58c0333804b599956cf14f50107fe3d. 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/USA2P2413243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e2565a878de971b256d74d1eb909431f2481c82f73eaa9dd6bceaa1ed6fbf1a. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USA2P2413244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x200f00f75a4926e5a7a5d41c1ffbd9a95a7998341e49f00b7bb40303038cd4e8. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/DEPI82310591.
You Are In My System - Faster Horses Sport Mix
You Are In My System (Faster Horses Sport Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88589adb2c7b0ad8985fb81499a0b027013b6d793d8934de5f3a17102a7156db. 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/GBKQU2384659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51a5cba10efd1bb07a93163622d33d8d9c0c526dcfe94b0a8febd42c1fee0133. 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/UKY7B2000048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x145bea2a22f895e824d52ee8ab13b13a763009dd50da182c43395cd5403a3035. 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/QZS652390370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf11c3e76d200ea4c8c9f6de77b5b05a97020c7226ac0d48a93aafb32893c11a9. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/FRDKW2313787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a6aaaafc7d005fcd1fcdc33f868e8ac0016acb878ea38b3ee15bd5541581a58. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/QZKDK2193170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc2087275a08abc4f950c4a5b358024c89aa5706fff684cd675e78277a69ffdd. 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/QZNWU2482768.
Greenroom Gremlins - Faster Horses Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ba2e5be4258a8193ca5a994a55b8b1e8752e5bb943c2c2460be76ce44bc5502. 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/DEH742432394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb418641de50ffebbb0309aab74fe71b2e5b98c0502c8edfa00a6a2ed2c0b20cf. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/QZS632146752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29806baf74a61e4a59056500cc6576918ddf8c378482a9b564a6c96529bdc8b0. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/DEH742409756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x430c50947c93cd89684e001d35153e3bca6a153fb3b193cd59b21a0af4f4be24. 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/USLZJ2172186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb3c9837e68de0de7e49a6bbcfd4675925121ff6ef1edaac6d9a1f5d433ce1a0. 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/DE1FB2400456.