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 0x0608f340dc283c13cb059b06f5e86681b522d9f6b65985053a580d8026b3ed8b. 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/0e9d16c8-4d6f-4e11-b4e8-ff53c4b38abf.json and https://artists.proofprofile.net/proofs/artist/0e9d16c8-4d6f-4e11-b4e8-ff53c4b38abf.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 0x0c06b695fb56338aabc59b032bf3a0355ff0f5dd9ae6a91cb533255c15c26e85. 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/DK4YA2318001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x144d626926bb63cb318a21374083a3381b53418d96ac63b99ceb2d6f9d85f977. 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/FRX762106367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd182ae0fad3f178df1344e2d439eab25a8d3aa4a779eebf651c9a18346b9779. 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/QM42K2121433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62dac8e92f5bcba3db81ae67d8feeeaf210fd24dc96ba080274be06465ba8efd. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/QZFYW1977988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca9df74383b8e82e86a50ecd6ad213e52dc1a14d22fbbf4aebda76ee3cdbfe8d. 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/DEHK91893941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x157d1edb324fa24a1853ea98b2b1a05ec6d024ab80b1149c1ed67abd52578218. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/DEHK91892821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a09a24b84ee89e2bb99853906877b8ca45e494e585a613699139b84bf47c1a7. 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/DEHK91689741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d7f183b041a6b7400198f21462fbce185c728bc0c763cf2f2f0a300cdd19ba0. 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/DEHK91689742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe82ec6a061fe7f9c163b094f959218bdba6d1e9552af0063f6a6a7eb8ad3ac7f. 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/DEHK91688545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4516f66ab7fcc38d813b7a0fe4c0ce224f615d57438fdcdeea9c49e8d253ff19. 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/DEHK91587201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7172ae17e9f00be9c8276993b952f3ba32949e79161cb763c9bf451dac6e24f. 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/DEHK91587202.
Money Can't Buy - DJ Gollum feat. DJ Cap Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x915cdc9a9f46932ee12d23d6ff42e46c52d2e3551a0ae07bb6528a7e5c67b44a. 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/DEHK91587203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4359f0be7a5536204194db45e1c5abb1d1bec2ba1be1a9dcee21fdd705eb345. 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/DEHK91585501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x708e5bdf19554da4fda0691a39f0ad50acc5c5f82eaec620db07bb7f1a769dd1. 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/DEHK91585502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c850f00b45690ff348cfb63cd892f27761408f67b194bfd8b73b1947261b5c6. 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/DEHK91481501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09c2689ab424810c3f3f924385afd250f7a0e527c2e863e400d626a4194e9b66. 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/DEHK91481503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x784e101a8abe0dfe26a6f30b138010143f5f7bb445390878d3395ba763367777. 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/DEHK91477402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cab77ea6934d479b5914d073f9074a6c1f015dd80bb2ae26a4edaccce43e91e. 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/DEHK91376001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x844adc87242f9b168c7d18ec2c96fa0f62f131f0d96faf36ce8cb424315d4e8a. 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/DEHK91376002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8165b05a89882b7d76a05ce66fd7400b42171badd465b5d6c6134abb4da4ceb6. 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/DEHK91376003.