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 0xc471cf5d0f52d8f8182576db9d50f30d4a6f4f360417453cba3cacefd3528a72. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/aa758845-56bd-4dee-a6c8-1d7d47df1eb6.json and https://artists.proofprofile.net/proofs/artist/aa758845-56bd-4dee-a6c8-1d7d47df1eb6.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 0xdf428b2ee68a468fdf929d1e491726804e48a016ebf4d16b6921e294a3ff7ea6. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/FR9W12239683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0a6becab867ee80ddf7ed6edde53cd0da96e4e6c96ec30070c11c580cb4d8f1. 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/FR9W12239684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c6b2cbc97918d221ae8964ca0b27416613a272e98b38b0715d735ce352337a0. 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/FR9W12239685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x375a7370dab162ab7cb4038d3b82d43703c9e6ad0e7e75e261cb3691c67e3dd7. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/FR9W12239686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe203f9a3632e5ad87e683c61a029fd1405bd2896f911f81aedb6f39c8d10348b. 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/FR9W12239687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c070dfb5deb237b22aee85592fb03229c7e47b5cd162d07d4257c1292f2255d. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/FR9W12239688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55cfe945ed3ffe4134bb44e81ea1cec7030b6891600ba166d5062e00cabb4429. 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/FR9W12239689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ff7c5eb421a8b1a71b6855d574404f96970994e09afffd3759f44a34dba9808. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/FR9W12239690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5c0827d0c435644e60b9a1673a26189b396883520ba3333dd7d7ddf018cfa35. 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/FR9W12239691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd0a80b4a41d7ac916c26599a975cb8db6da52527660e24cbf809ba747cb13a1. 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/FR9W12239692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e9906eeb03e3cf6d2c04d1f8b0d8dc0e78956ad0aaea62344c84ef9fc751e16. 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/FR9W12239693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe1f5c6444be27eee851072a14f83e58add159e2e91390f8a670f9802227df7e. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/FR9W12360347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf428b2ee68a468fdf929d1e491726804e48a016ebf4d16b6921e294a3ff7ea6. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/FR9W12239683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0a6becab867ee80ddf7ed6edde53cd0da96e4e6c96ec30070c11c580cb4d8f1. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/FR9W12239684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c6b2cbc97918d221ae8964ca0b27416613a272e98b38b0715d735ce352337a0. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/FR9W12239685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x375a7370dab162ab7cb4038d3b82d43703c9e6ad0e7e75e261cb3691c67e3dd7. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/FR9W12239686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe203f9a3632e5ad87e683c61a029fd1405bd2896f911f81aedb6f39c8d10348b. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-21T17:10:20Z), 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/FR9W12239687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c070dfb5deb237b22aee85592fb03229c7e47b5cd162d07d4257c1292f2255d. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/FR9W12239688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55cfe945ed3ffe4134bb44e81ea1cec7030b6891600ba166d5062e00cabb4429. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/FR9W12239689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ff7c5eb421a8b1a71b6855d574404f96970994e09afffd3759f44a34dba9808. 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/FR9W12239690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5c0827d0c435644e60b9a1673a26189b396883520ba3333dd7d7ddf018cfa35. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-21T20:58:25Z), 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/FR9W12239691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd0a80b4a41d7ac916c26599a975cb8db6da52527660e24cbf809ba747cb13a1. 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/FR9W12239692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e9906eeb03e3cf6d2c04d1f8b0d8dc0e78956ad0aaea62344c84ef9fc751e16. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/FR9W12239693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95df41741f7c4990ebdb3e68d5017ce3c8ef01c72868efa22d38304f8515f64a. 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/FR9W12418343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc729615e6508db9bcc11a95b9d43d23772797d74890a1bf3547a7d2df5f66c36. 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/FR9W12418344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe1f5c6444be27eee851072a14f83e58add159e2e91390f8a670f9802227df7e. 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/FR9W12360347.
Running After Time - Kraak & Smaak Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b876158b8390474e241a0567f75e9906d168a1d8f6e57314b93cfe66fe71aa0. 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/FR9W12418345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6e248b742a3a41916d27ca37ea1cf31082fbb53872a5d8d21737bb675746295. 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/FR9W12418347.
Running After Time - Jean Tonique Club Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d4b9b4d34a2062f871e1c6fada63946b54c2b487b33330a9acd0d853cdf40e8. 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/FR9W12303392.