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 0x50fd7c9e429ad627038d93be3524d17ef8d294834fdb40b48b723782b01909ff. 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/d2e32a3b-20c6-4d4b-a4f7-e2a76beb3f78.json and https://artists.proofprofile.net/proofs/artist/d2e32a3b-20c6-4d4b-a4f7-e2a76beb3f78.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 0x23dd5a8505c33688d4fc89a9d0ff529cee966c188124d184cd5911eab139d604. 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/QZTBA2335714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b52c99bf2c37fef86027f1d560f826422ffa9db800fabb72ba6f816c2cc0c3c. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZTB42375680.
Tugg Melodies Ape Colours (Deluxe Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98fe159df43daee62562a649cc3608c8b8dd4d40121c50e15a6b02a5924f7adf. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GB2DY2100435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8e10b877482759bbc86a09f11d6612ced756d374055682a1bc080d6fb9d47f5. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GB2DY2100328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a2f1b6d1b03eee3fe0759e6a9d3f5e2419c16ae6c315ec366695f7400f84b45. 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/GB2DY2100690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2095dde500cdb99c153e950ffe05776e23b920d8cd8243bd6ebc8767737f9e2. 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/QZDA62032245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9914a33bf0ee3201dbab518757830faab0fd459268d8af67d99bb8f22f2a0c1b. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZDA62032248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x516bca0832a53369fd9c9bf1bb950480cd890e9aa6a12ff0e96e8e6153f82371. 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/QZDA62032252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5abbf829759a30bbf8a3b9810418a321354a5cbcfae15323df5c55753585096. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZDA62032255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc139688445a727d22d05bed76c3fccf15948ed321da10dc4cb055f113b408020. 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/QZDA62032256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd38ddbabeb1db48b2f1584cd6509678b071a18c59193d0bdc203901d94f1faa. 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/SEYOK1958938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fc658e2e21aa8f6d93af2543097ccdfac3f47731900c3c03d3f201a69270ed5. 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/SEYOK1958942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb27367e0a90a74f420b3b0e6562a6fe0bb083569d26dd9715c3cb8c98caa7013. 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/GBUM72202236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa75d15756067d524df91b2293317b3915d6729cb8e3964a6a1c7df62c6feb2fd. 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/QZDA42238331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98fe159df43daee62562a649cc3608c8b8dd4d40121c50e15a6b02a5924f7adf. 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/GB2DY2100435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8e10b877482759bbc86a09f11d6612ced756d374055682a1bc080d6fb9d47f5. 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/GB2DY2100328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7742d46965e640be974edce06e5abc0169b3f1884843e5f01ba45ffca24a30a9. 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/QZK6H2026555.