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 0xd6bcacf6298a69b35d187ad7cc5f3864111cf19a8c4ef562d58ae0974888eb3b. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fa10516b-e63d-41c4-8a96-07065f4b69fb.json and https://artists.proofprofile.net/proofs/artist/fa10516b-e63d-41c4-8a96-07065f4b69fb.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 0x74a434cdc6182e44e47c4d0aa45c9ffc95b617170155c7c657bf97a9a4814efe. 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/TCABQ1306474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51dba622fbcdd7894420080daa30ebe44eda2046222aca3a2f55a53cc1befef8. 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/TCABQ1321024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fda8f4a3fbbb9d120c36ce9e3a1abcb080de051e63832ab7094fdb081531bcd. 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/TCABQ1321031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fa4d48ed0b317906a03c8f60310782bce905269c4b2d8823dbde5ad33c6f572. 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/TCABQ1321033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd59be292ecc9e036b2a91b7f33a13bd74f23bd8822ce9ea2f38faa2794a954f2. 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/TCABQ1321035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd2c5eeecebe0e2437e7e2093b066213662ee23491590b386100b0c865345d66. 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/TCABQ1321038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x769e8f1b2703aff4087f37c2c60a299b9363b72fee7d794eadea30d901922542. 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/TCABQ1321054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71ad1e55edbd68744b3d4e30021f40ba49041a6d04661f96cd28efd14a780f15. Chain 2 (Bitcoin): anchored in block 960259 (2026-07-30T12:51:24Z), 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/TCABQ1321030.
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 0x30deebac9e351ce6c5856b362c203b885bea3d64f8cdf3666ae47121d7efde20. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T13:35:59Z), 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/TCABP1362253.
Who Is Like Our God (feat. Rna Messengers)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52971b9453d93bf94f99e112393ab26f47926f1b2c50f675ae60f75c3420c021. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/TCAEY2032152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe645921a38c33ce667b328f2cc0dab8ba2d535cea3250f3ca77820261297a795. 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/TCAFJ2147601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c3c70dce14bfa9b770bf67a51cfd7726d4be91a8dd6c702c66c85deb9462290. 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/TCAHK2349193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd979d73fe43cf1e2d08685fdbf6faeca2768f1669f35e23c64b6355ebf01b509. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZNWR2454336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb5f7489db27fd98c44b55812a4ed51c395f9853b78208134ff4f3c80b7be5e0. Chain 2 (Bitcoin): anchored in block 956485 (2026-07-03T10:53:04Z), 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/QZFZ42533729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b8358f0685acea7edd29b890b092b19a49336b49dcb79f89d687f6128359947. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T12:09:31Z), 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/QZHNB2562833.