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 0x5e84425949c25259bb207d897024137874e1170af5573e2e4d117c3b668d7c66. 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/e613f8b3-6f63-4600-b6c1-69b958808e3b.json and https://artists.proofprofile.net/proofs/artist/e613f8b3-6f63-4600-b6c1-69b958808e3b.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 0xd3c6e802d7532a98dc768a89c31cd614e7a7b31b9a4c556a440fbdafb029533b. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/DKAZ71579003.
Le Rayon Vert - Seahawks Vanish into Space Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde288fadce53953c2d276d8f9ee46ac014308b8651b44d33713c8ed1c47f9006. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T05:43:55Z), 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/DKAZ71710502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35a4961316e5ec5610ec23c7f664d9c7816c33ba58f5a18807c754b691503c21. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/DEG931901642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x934104c12532ddb3485d1b056ac61ac1eee9c52ff3c90c5c508a247d100f88ff. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/DEG931901644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd8bf95639c8a1fefa107e3f7db1833f8219f217cb62017669e3a724aace4d28. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/DEG931901645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cf9f53667d28920520a8d496487d9ece5da328c237be8f596f5a99ff68066c9. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/GB2SA2100023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfb2539a9fa5bee58e7a23e9929286a27021dd3d14eba8dad29741c3699acfe0. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/GB2SA2100024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe85fca1f947970dbb133499d485ccbe6d3757ab1e593f9e2de014a1106918c38. 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/GBPVV1902848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91fd7857c23d7386f4b804f3f4fa1ae67382c1a698ddbe0ae6c0298c058b8d29. 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/GBPVV1902849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd56a82ad93fe63e9c29faa6072410c0440ab980569cd50a79a8fb40f2172a7f8. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/UK9AV2301759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd56a82ad93fe63e9c29faa6072410c0440ab980569cd50a79a8fb40f2172a7f8. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/UK9AV2301759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3c6e802d7532a98dc768a89c31cd614e7a7b31b9a4c556a440fbdafb029533b. 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/DKAZ71579003.
More of That Frightful Oompty Boompty Music
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fc36e43cf9753550922eab248200599d30cf2f05f0eee6f2fd19d31146efc1c. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/GBJX32265504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68cd42e640db3adf61fff98a816aaa707a1ea872b16bd9bb15661b0771a1c259. 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/TCAIE2436953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68cf4cfe3d442b228c9d6b476b987aa0b959e4c31a58bf14bbe86e8f6392e28b. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/GB5KW2103634.