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 0x1c12860d735212b1495c6d1280491b07a91e1a3ee7dad075cf9e0770c80d289f. 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/6da6c2c2-40ad-4a06-ace1-f3b4b9e7cbd2.json and https://artists.proofprofile.net/proofs/artist/6da6c2c2-40ad-4a06-ace1-f3b4b9e7cbd2.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 0x3a5032742413ce3ac2edcd5e75714c25b2d50b16a4fd4355ac50ef37faaf38d9. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T02:03:10Z), 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/JPS801561070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18259938d9de60cf4af147e6dae8c9941a899f6e5327694fe3174db4cfc2ac65. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/JPS801561071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cc0117947922b8c91f55fa7dfd9bd6b0717c9545ab4969e10843e9a12571b99. Chain 2 (Bitcoin): anchored in block 958476 (2026-07-18T01:26:56Z), 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/JPS801561073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ccd1580f6b6cf37ccf7555cd1fc7d0b7995c5e74131377687a69230f0eb8384. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/JPS801561074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d5d8690aa2961713d7d6872bfdfdda629aa23b26af48ffb05414247289f1db0. Chain 2 (Bitcoin): anchored in block 958487 (2026-07-18T03:43:59Z), 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/JPS801561078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59419f35623100190cd01d034019b046dea82b1a175206d331c0f28429740e21. 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/JPS801561079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaf55ca7809493ee4aa1e2741aaf6bd2caf4fecb7d3b84257d981ef3a91dc2d8. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T04:27:20Z), 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/TCJPF1730205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01a5f17ebdc7349c67a3719b2806634e44b3c0dfdd538f7d54563e31936a5235. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/TCJPG1856155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x856689e51dcfb22b92c730bdcab4c94acf278bb788b7997dd3cd4801c34990fe. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/TCJPI1999681.
HEY HEY HO (movie edit) [feat. sachie hiraga]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4f0ef4c0c3830aa50b36d9a8f5dfabfcbe71a9a3f5ee18e9dd045d580d4bebd. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/TCJPJ1965029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53ec5ad96c5c06da7a198c9ca5d9fe06f8376b2081a0067d3afc829dd68c19c4. Chain 2 (Bitcoin): anchored in block 957775 (2026-07-13T00:04:23Z), 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/TCJPB2497186.