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 0x29e82af2580723983f23ce0066875145a7095a751a0d496c298b642dfe5b19e0. 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/b760ed4b-b6cd-48f4-b3fb-ab8e238f0b5f.json and https://artists.proofprofile.net/proofs/artist/b760ed4b-b6cd-48f4-b3fb-ab8e238f0b5f.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 0x0d11d46996a8fa80ffb5cd55880f0c16be446c97343e4ca9c5e6912dc7619f29. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/GBKQU2005231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9e36981188dddeab3e7a91ae84752bcb33412e4341abccf563c40dc8685202b. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T18:22:56Z), 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/GBKQU2005197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88c2b44ca1e340e81424b513359b52bffc23351a56b4a7edf8d891fcd1d6fa47. 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/GBKQU2005230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x121f0182c7ab1743dd1f90c43e3dbec4914437ce576da2fe0e6ec0734466a518. 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/GBKQU2005139.
I'm Feeling It (John Neal vs Novasonix Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a1d7d363fc9e914464b004170cf5ae49ffb0676ee007c01ad2d15505e6f406b. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/GBLV62015521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb0cb278f087fbfe66e4f55c4b16f13187718f5a6a90dd61410c79d566a4b599. Chain 2 (Bitcoin): anchored in block 958531 (2026-07-18T09:39:18Z), 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/GBLV62035074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbacc2bbecebef948d8fce0b4b54729b40acb1614749d84ecda37f040047f5e38. Chain 2 (Bitcoin): anchored in block 958366 (2026-07-17T07:55:28Z), 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/GBKQU2026741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c443e4d9bae431177d7ffa1147c71b22a406c52475a17e9041bb2fb1a508b97. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T15:05:27Z), 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/GBKQU2134679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc15102a5cc602533fc93ccbf2d6f9324b52acd37b34d9e8528c9f65ccd720a80. 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/GBWQK1100008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbc5e5b51af0bfb2634cb87ae3953b77028ea6a7bf2bf187dcbf09f194b7a057. 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/GBLV62036494.
Crazy About Your Love - KB Project Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfce94f58e4d162c1a1ce58ee5a79178ce566c020b06ac7ad65760452082ec1cb. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/GBLV62035078.
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 0x20e473fcace0383745b656093672cc79553bb82852a6e5dae1220a945d19f887. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/GBLV62036496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7be355e8d51c2e8b474169ff7a01bf04dfa8080244fa8f8721f321a03cdd1a85. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/DEZ620600090.