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 0xaa4ff80de8955d81cc208d0dbe9a19fab7f0275a341f016b0b741562d0f4b644. Chain 2 (Bitcoin): anchored in block 953949 (2026-06-16T13:28:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/185fcb2f-bfaa-469c-8006-308c54597a9d.json and https://artists.proofprofile.net/proofs/artist/185fcb2f-bfaa-469c-8006-308c54597a9d.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 0x0df29c316acf8602218b2209d574e5e7667437614e18e0322db91ad3841fedb9. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GB8KE2056605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe759dd685ce85eb7b933ce1e01ed1555a98510b96f2a878b3fd31bce78dbf3f4. 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/GB8KE2321346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x142d837dc754fe23d84433c9e933e78726ee24767fa4c0bc4002a71d2e01da93. 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/GB8KE2321347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x974ac5c1ee51799f7d4a1950eee502e85f7d7208d7a147e703b93083cfc17149. 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/GB8KE2321349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81c865653ff0c83808d5fb4d643094f3593b24901b5872e8dd0127ae744f2613. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/GB8KE2212410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c7edab4f16dd8c24a2994a94132b430801b1e7fe4540f3e6d57d5ea228024fc. 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/GB8KE2321350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bcfb0feb8418d4e5a303cd777f36a7dad7f5aca323d184e91f6d95a0004b838. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/GB8KE2321353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa80b6b799e783b35afd1624aed2dd105262bb44d7896bd1af2712c7d969e8fd9. 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/GB8KE2321354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadee80311d4f67d9980ece829fc150d2146699256dcc4b3aa4701e84369a8f15. 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/GB8KE2215010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfabfe31976f71a627042d2328931a67249061f8b1dc4034eb16299a8af117b03. 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/GB8KE2321355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dfc05cce7953a0c89dd5aa81dc5927ce41101f15f837e0c1c4c9459c6ea8307. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/GB8KE2321356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x782496004f4a1c8541e04457a5073245027b40c6c99fa12c2e172b0987ad363c. 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/GB8KE2300294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe20830573f1134919c0d1dae386970897718df6858ac7dc8ca9c1d3b65e75f93. 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/GB8KE2321357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0f0dd97a6ac74b1fff1d74f30bd0e998831393febe4c2f6aaa55f05dbf2cfd9. 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/GB8KE2321358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e2100db107fdbb032bdbf6e7980e41d36601842f8386df0b5b7e648391878fd. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GB8KE2321351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b965a36ff79d665ee7b2699e018ef4d63603891aed069f2cb4fcaeafb1ba972. 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/GB8KE2321359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7ae1388e9646b09d539b09a3a9980e60e9c3783f9b61bd5ddda935e084014c2. 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/GB8KE2307856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e490aecfdf0a9a6307ac7473a629a4c69d6d89403ca6515ac4534235674f4ac. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GB8KE2322207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d7d71b14f3ff9b580e50eca957abaa1473cf230fa40072b52f24f2d007940ec. 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/GB8KE2211159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bb3c1512dee08c624421cd172763086297129f9a79bfa208d45d54f82f4cd3f. 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/GB8KE2303233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70dae95518c730de28afd9a02876639306f36a397bd5fabc40ac42273894c89e. 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/GB8KE2316572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac30d1b8b7de4318288436d323990a883225f926c452c502f3c9297575b53ccf. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GB8KE2321361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x845fe69b6dab37c233955dfefff928158799a456fb34f3e13e53b2f49af02350. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GB8KE2321362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f90a284fb4d45a8cf8450ba4a02964abbb90b6984449945e13ca27347e94c7c. 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/GB8KE2422509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6abd2313e8ebff06d3f563a3d42aba5c85e280ae16147f57293209febeaa840. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/GB8KE2308169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadee80311d4f67d9980ece829fc150d2146699256dcc4b3aa4701e84369a8f15. 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/GB8KE2215010.
Santa Is a Dnb Head & Other Christmas Tales
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8523f85b1bbb3b96532c71e50e92765427b701f479cacfc79379a2b3d5aae6d2. Chain 2 (Bitcoin): anchored in block 957056 (2026-07-07T15:15:30Z), 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/NZAM02003142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26290cde3a22888f15ba6e3473ee7b67610fe097ef981738483ef706b3652305. 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/GB8KE2506514.