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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b10637a0b4ab00309aa98d32017759e92fe5786b5a0c24112c6bbd32b557766. 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/313ec282-87ca-41ed-bf2e-09da93574e9a.json and https://artists.proofprofile.net/proofs/artist/313ec282-87ca-41ed-bf2e-09da93574e9a.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0060502230c351a68741975cbf5562aed2d05da74e0889c4ba91701f117b9f58. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/RUA1H2026720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20be4422b5075f7373a029b2a087cc403b4df87cf3c1533b64161ac2873974bd. 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/RUA1D2069055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2cab9db6e32fd878eb4499b4da619e4ab6551b9eaeee462c80b067d2a3f5431. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/RUA1D2069057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2eb79962f0db2b9b820ba35c9b5fbdc9cd79e8c3b06736f6c8a29721e69c8b98. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-16T00:00:41Z), 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/RUA1D2118429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2c4e5e84b2d35cc3d816b718229e15a39f8d9ea0fe207f264e1f81d914fd507. 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/RUA582105054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e2baf3bbd2985c27ef52a672e761fd62438302e0bafaf1fdb20ff350bfd9f3b. 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/RUA582107480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96cfab264dccabfca67d3c1c4699f31e43724d7029c0985308cdf0c8b2adf1f7. 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/DGA072238817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f528f0a0a489da292eca5c40a21ac9e820009953d8c293d975d6902aeda0087. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/DGA082234659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd81606e7ef7d4035a42d7392032f2c211fae28e6bba035ddf68de5cf9532ad59. Chain 2 (Bitcoin): anchored in block 958668 (2026-07-19T05:16:11Z), 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/DGA082234660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ef24578e758358489b3fbbcc09f4487a54bbf3857985962feb6bde0332ff5db. 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/RUA1D2309857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa45e1acab280e51c694ced8b0cbe612181758fceb742e156267f4c7e9dd523b0. 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/RUAGV2302065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe77b169bb16b6c3b055f1b0f6fb0fb3c736623e71d135928c8b2f484193f28da. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-16T21:55:37Z), 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/RUAGV2401281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc36175e0a80b3f92231747727ac9b4f00e5bb9ca36b71e8006d6b51091eb78a6. 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/RUAGV2403602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2058cc4c441b3507cde8a590404a69e5e569af7ef0ab5933f26b926f31f219a. 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/RUAGV2408209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26eac53b7fb1a148fbe4640a5efc9d187c7f69b13aaa5de0f199bd10f561caab. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/RUAGV2409608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc36175e0a80b3f92231747727ac9b4f00e5bb9ca36b71e8006d6b51091eb78a6. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:58:15Z), 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/RUAGV2403602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8040dac0dd968656481688f276d0dd478852add038a35fc9c0abd644e887a220. Chain 2 (Bitcoin): anchored in block 958666 (2026-07-19T05:00:30Z), 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/RUAGV2409610.