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 0x6d4b17f4b124e10e5a95a8b43b4110526a918da2b84f535dadc9cedba17aeaab. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/88d22cd2-06cd-4e2f-a760-b5a158787aaa.json and https://artists.proofprofile.net/proofs/artist/88d22cd2-06cd-4e2f-a760-b5a158787aaa.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 0x607c9e622cbf9f018ef001bdd8d054ecce5a67517f95432b87185475a45ef9e0. 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/FR10S1800876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb19dd17ef62f10826e0136a6ecdfc27721cd023fcc4e8dd194f50afb18fc6ad4. 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/FR96X1881408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb8bcbc24b546a5f4630d255c0ba515bde6bfb8affffb01723bd76d0d337d9f6. 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/FR59R1991958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf48154567ec742cb6f7c0d3890ce6f70f72ea60d488d68aec307b241913667e0. 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/GBJX32149005.
Spanish Steroids (Tour-Maubourg's Love the Bass Vocal Mix)
Spanish Steroids - Tour-Maubourg's Love The Bass Vocal Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a28e84d8d83c4294fdd6474628e030baf0a14780dba5511adadaff1bd9fb940. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/GBJX32249010.
Spanish Steroids (Tour-Maubourg's Love The Bass Vocal Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a28e84d8d83c4294fdd6474628e030baf0a14780dba5511adadaff1bd9fb940. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/GBJX32249010.
Spanish Steroids (Le Hutin 25 A.M Vision)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83885ccf88be81575cba5a334d2f1a4e1096b7df0d18dc07f24d95c5500cad78. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QM6P42324601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c356e7e5eb551f55c9287a0e5804b22b020db8bc20b10f13dcaea4716b56d32. 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/QM6P42324609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7120fdee084649c116070373c40f787fc68dbfecbefa17c591817b17e873d810. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T08:31:23Z), 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/GBKQU2470183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x972d51237987c692073843573c6cbcb7d4712cf81e4043c93c39c836cd049659. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/GBKQU2501985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a997614b4f176e3c0be73adc4e6c402d4bfbf33d51c2d5ee2ffa9a88a062d8f. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/GBKQU2541835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea82587c7e2dc0c30b5937c57a514271b5ffb2db196f7c81d965f01f45b6343f. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/GBLV62322787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40d4c40d63f011dbee94d90749b2e0afb54ef42b123df6da45e9b015e8d272b7. 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/GBJX32249003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f290b7e0bd560c2036c6f563e95953483e4da0f6bcd2729a5177946bf4dfa46. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/NL7MK2200108.
Lovin' Lovin' - Bouncy Mix Que Pour Toi Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0035d84f633b75fc52090138510ff4cca7227ca33d13872cbda976183f6e861. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/FR59R1875837.
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 0xb599936fd0c78447a5066fda599fba47b1fa34a27ac84e5da4684f90a1190ef6. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/GBLV61902183.