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 0xeabe249274b5e598eb4e49d7ba52404f77bb01b67d0ab0a9f5496c7e48691c60. 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/0e198da8-78dc-4194-b02e-06341fc027b5.json and https://artists.proofprofile.net/proofs/artist/0e198da8-78dc-4194-b02e-06341fc027b5.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 0xfa02912b346e98151e4bb997eed604b6161b5ec50723aa07e69ce70ca199f0b6. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/QZK6P2280907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6d65f311fd9fb55931cff877f97f1d02b35a58aaaab3ab2841cf94f79097b21. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/QZK6P2280908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f8cc02170a52c10f148520752b4c4068a0aac4ff17f8664269957fd8558b709. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/QZK6N2228620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88fc23dcf5b017d9e52f44cd3ae410f61a80721eb9da5096e78b02d340de6090. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/QZK6N2228621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab7e0467115bb197aeb4fd723b016de149368ff81f9fcf5566f71c1f7650ee49. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/QZK6N2228614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3111db51884a62415e2bbe9ddb2080c7259138df4959a19dbb14b2d8cc9c1e22. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/QZK6P2280903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1a2912c8117ad911da2c886e433213bd81b4bb11ad55c69740849c2f6b65fb8. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/QZK6N2228612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x043abb522271e6089c5391b0fda8eb8f925203c4de6ceb1837ea370b2a62d792. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/QZK6N2228613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x792c8341a6699c9014fa76a1b9ca905f6463454195b84f001beb9be096fecf84. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/QZK6N2228618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e965ec83fd46c4b9da9d24fd1a27132dc9f241a0e86d42a968122b3da8d3345. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/QZK6N2228619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfca65ba4e1b682643964a2416b49e5c2904fdc6d794c9a2fb64548b1e1bc07e. 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/QZTB32233829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd067f8d3ca0707c11c929300d298d9649b3f0ba497f02ea8559199172de9fd09. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/QZHN72329537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5436f7936a3c5d7daf8c7125c9c719f312202df5c0e1cb53239843bb558624e4. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), 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/QZHN72329538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95fb7558392d9d41dc5ac80c279940792f9b7d4b03f28f7c6efa24dbbef6d5dd. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/QZK6P2280901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88d053a9e65705a0ed3a14458923d05511ced91e171054bb965a7550f70bbab1. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/QZK6N2228616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf356dbf1de7de81d4b4e8dcdc42678a4112823f03dc3caf0f33218838676d2d6. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/QZK6N2228617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06f8dfca866f6c1f8f1b8b76e4ae77817cba8fb7a12524e705e022cbf1556b54. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/QZPLS2325456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18da3b6821ce9f249226b9bb778f62c58c8f5811baf7748aad4ca6716b1ed104. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T10:05:23Z), 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/QZPLS2325457.
Spiritually Loaded (Hip Hop Instrumental Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42448e3baca234ba43c21d75b5491cfe010af93be2fe4aab4cbe3c133e913b1f. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/QZFZ62503005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbee941000c0ffca49834aa639b11edbeba88674b326b8ba81978865dc7edeac2. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/QZFZ42599493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bec20fd865c16f303905ce5916edb4b988ef1e95510c17be2e36239b32da0e1. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/QZFZ42599494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f91af19d342986f38fff5558881fe866528347e6253c19b8664a6b398e9988f. 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/QZFZ42599502.