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 0x8f645e008da41c44dd43a9fe77b6ed2177360ad9e86a350e1478d9e3b9c2e221. 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/63094a47-4406-496b-aa92-8bb99a758987.json and https://artists.proofprofile.net/proofs/artist/63094a47-4406-496b-aa92-8bb99a758987.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 0xf0e7b53ca228e6c8c6931b1ed8640e427196e331ba89e588076d1424df37bd91. 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/QZJ842003867.
She’s A 10 But… (Remix) (feat. Yung Gravy)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff713ef1e25a368c8fd5a0b78b99f290e124725daa8217c255de94d39bb05a4a. 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/GBUM72300639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d8467ee8d15f55444eacbb830103a6dce66255cb9a08506a237b2ef371dcba6. 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/GBUM72207386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d8467ee8d15f55444eacbb830103a6dce66255cb9a08506a237b2ef371dcba6. 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/GBUM72207386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb80982fd8c1187f0ad4466e9fcd1dcf539683a31237615f19d201b2250574900. 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/QZJ842402466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45e8770347f019c0e7bea62fd5c9a6dc6f99fe71510261663e5bf78a899a644c. 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/QZJ842401213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x055986cc9cf4bd469e51aa2f59a1875603234a3c75433b897ce26e1193d3e930. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZJ842004460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45e8770347f019c0e7bea62fd5c9a6dc6f99fe71510261663e5bf78a899a644c. 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/QZJ842401213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52eae9a61989e35799bc16b29904dcc8f62d827cc72a5521d46defe7b6b86382. 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/QZJ842400904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x055986cc9cf4bd469e51aa2f59a1875603234a3c75433b897ce26e1193d3e930. 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/QZJ842004460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52eae9a61989e35799bc16b29904dcc8f62d827cc72a5521d46defe7b6b86382. 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/QZJ842400904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x055986cc9cf4bd469e51aa2f59a1875603234a3c75433b897ce26e1193d3e930. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZJ842004460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7148b5824e54273aabd3581ffccf384a6aae063e194ca7e6f24c0c787ccfed2. 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/QZJ842004104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc47757e47164cd4b6aebd41ba91356fed7a6e01a2d657adb1567fde527a7634a. Chain 2 (Bitcoin): anchored in block 957065 (2026-07-07T16:43:21Z), 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/QZJ842003919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0e7b53ca228e6c8c6931b1ed8640e427196e331ba89e588076d1424df37bd91. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZJ842003867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc47757e47164cd4b6aebd41ba91356fed7a6e01a2d657adb1567fde527a7634a. 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/QZJ842003919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8781ac5a8ab86ae8f780b26ec70a91ac9f675a79cc743440d21b3ba71323bb47. 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/QZJ842003662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01f0a9d625b8d79205f1fbf2ad6d47897a56901262b7a3dcaed6839cbaba08a8. 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/QZJ842003137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98987c6bfb5be8856c8316cfa878e76166c35505d05c13789682b8d2cb78f1de. 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/QZJ842002913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3f70f52ac0a2cadeb17e4165f3563cc33ab20138b195d2c80dcea11af11ee5b. 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/UKXN22206235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb98105b01f6be593f230b6fac5493eaef7d38efeda8f5f05d306950d0c7a128. 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/GX53U2005643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bafbf8fff44be9eff05b0c65d774b63962ad436953572fe2b754fe4f28feaa8. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/UKQWC2000085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a6159fc02a9bac58ba86cef3c0033366d2cc36c7bbff0b50a51fa6efa8af8de. 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/UKXN21928839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7cbd0c46f0a809c2e09f5eccf9970846c62c6d7c564ac35ece5df48d2a8009d. 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/UKXN22059266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdfdeebb7eca50d48a8f4b29afafff497ce55976cb0c8bb33db5101dc8140ccf. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBMA22070322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc61c3a708168b349c9ec3645de8f43d75e5f1467fba9cfbff38d5086c6e75808. 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/GBLFP1994355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d522957ab90123118074f36ebce1eccb9a21b59f323aecc5ca3c03b6be1a6c4. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/UKQWC2100006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d76cdb3738bdf1546db43f0715f52008763be64ab51e78cea74d415d5799b3e. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/UKQWC2100008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6561d2f31b420b746fe3172dc95aa1be83f63d4429e9c54a67b142cdf9669616. Chain 2 (Bitcoin): anchored in block 960166 (2026-07-29T23:39:29Z), 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/UKQWC2100009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacf0c9f030fd582cc884cde59dcd3703fab64b1c62c1212f2ffecea1f7536cb6. 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/UKQWC2100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd75b9b3ad3522ec41dd523cfecfe6735bbd3e6a200c9ae06c6b41adde3391ea. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/UKQWC2100010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1d6301eec95399eb861489cb736bbf19bdb64f75c41d8a574bdbdc4f302febd. 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/UKQWC2000091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f348628e503213f52910577ab63cf88a6f448f160edda24aa03fda4f40f8be7. Chain 2 (Bitcoin): anchored in block 960166 (2026-07-29T23:39:29Z), 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/UKQWC2000082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bafbf8fff44be9eff05b0c65d774b63962ad436953572fe2b754fe4f28feaa8. 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/UKQWC2000085.