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 0x9c76bac5e4b8656294c66741b8dd08fc1d2e7649ec1068f77e59533f38bd111b. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/52dc3d8b-0f12-42c5-8414-f8450ad7ec20.json and https://artists.proofprofile.net/proofs/artist/52dc3d8b-0f12-42c5-8414-f8450ad7ec20.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 0x9efffaad5a06e2ff32b78b675a614104e71d3d91798b4686a92ed9081aa6f853. 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/GBK3W2101666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8509dbcae53af3e2174cc0f036f4cd7428826a5ffe3ac4e7478fb7c9b1f63da6. 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/GBK3W2101667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x313b17c9f38a2fd8f95625265d4d06b0a4b4259803cc3973ef35a588885c15a3. 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/GBK3W2101668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x025a0c7398cc773aa0ccc569a06adc39fb871e2066a09e36d314f72d0b42fcef. 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/GBK3W2101669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6a28367dddda6d860b90b915a1c066496292554b6adbb7ac0e42f464bc0c6a3. 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/GBK3W2101670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f7016a798ca2581d9c8fa1ca0aa7e0ef3854073c269587708b78065a408659b. 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/GBK3W2101672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x420ca4c292c55cf15575bda6c1950b0b98fce70fca7607fb162047ccc5f2a7b2. 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/GBK3W2202442.
Don't You Go Falling In Love (feat. Biig Piig & Lord Apex)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x599c8953a62c23e27ed7bbecb36bca69d0ccdc4644a20e18e723f357402c72c5. 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/GBK3W2202560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3958ed3f986b683f482f3ae52fd51446f8913d099f67caf9481dcb6f31b71c5f. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T19:54:01Z), 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/GBK3W2302570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8026843c5437b6335b6f95a580bb264ffa2140b7d1620c27698953361e95e1cf. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/GBK3W2302566.
Don’t You Go Falling In Love (feat. Biig Piig & Lord Apex)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d78d7f97afb4933c8e312b5035d5d9bedc095422f4f4cbe247f4e5cf60276b3. 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/GBK3W2202140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf547f28c41312591c8c409c807588e0751447312c714ddc4e39df574a7dd6e10. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/GBK3W2302580.
Fear Of Flying (feat. Aminé & beabadoobee)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16677b27bfa20fd892e869b41e034e23fdb65e2ff8b69016360974cdaf80bcb9. 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/GBK3W2302801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c3068f68a5f765cb4fbd5bf497b0f5b03b54e3c4f384856ee09613d261cda3e. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/QZTBF2408541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb82d09dc412c7eea6721be950c32b1efd42e96234c3d5ae7e6483b4f3adea29. 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/GBKPL1949494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd82807966720cd6ba2da4e97252dd3d809400150edde444ae38c689af8d3134d. 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/GBKPL1949492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91ea2ec1cbacbdabb62aadc21c0f7e719439e89d771ffeb425be6c97a0464cf5. 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/GBARL1901199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bbc1e13993ea9860883eb15489198251ea98aa2d52653a74153d3a3232e1417. 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/GBKPL1941816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a24b8de4d6c70458e95954cb4ba19a3a14b0186070a4640d23922f5b37306f8. 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/GBKPL1941817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc851897ee09ce5fafa73d20363f80ebe94d79f11ed6336f11608f898823618b5. 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/GBKPL1828917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b4968ff4b31c142a74a98a07c29b871038fa1e2ef48731f4fefb73fb0b6aad0. 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/GBKPL1801209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9b34c0c0a0a378180f67a6c6c803d16c0fc2d3399d05c50330107b31c78fb63. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/GBKPL1949491.
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