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 0x500668db6493b685072c5a401e40478b9d8db56f99624e8ee6789112b027e195. 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/237a2be1-c3f2-4bcb-8bab-9aef1a98dc8d.json and https://artists.proofprofile.net/proofs/artist/237a2be1-c3f2-4bcb-8bab-9aef1a98dc8d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
a little too much [Official Music Video]
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 0xc60278caa856fd4b60bda90dadea24d85e29bcb290062ffc1a5da99171f4c25b. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/QMBZ92033473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57150dcc711aa1b5252337ae81dad0f9d4294ae29195bdc4f6da781f951b82b4. 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/QM7282068179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x395b7d9ce240367f2c0ee146ac316d7a5dc062b7ace8e9be04130263d9808aa9. 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/USAT21500553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb34870bf4092bece21da0d274f96528cf42ffb1fb9e107ea0b7ad718b9cd243d. 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/USAT21602230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5c04890a432158e89e5b18d1fe7d41c072e32df659e5526225901035cb53b58. 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/AUFF01600793.
Never Be Like You - Martin Solveig Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9002d5fec45485af784db22f5389d1a1cd450c243a0fbede3c8589d13eda45b4. 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/AUFF01600867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7b112947012cb1db33bbc01e0f9126603bfb11e20853fd016f2de20e85ba725. 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/USAT21602229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c51b46ec325b648c8906e16531ad05fb750f5e7f4afad4208372dba22ce90f2. 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/USAT21602233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8591a5cce1e57dddce0616938ef7134e179d01e5151f5b3d26ea5f0a1f76d01b. 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/USAT21602232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x982b895d72192a5440b742c151db136922f763d1eb49a556cb676b4b49b39f4b. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/USAT21602228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf16b9b41c4f9e858867a2945a1256864d62802b957d95148e41d738160b98189. 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/AUFF01600794.
Mind (feat. Kai) - Basecamp & Mark Johns Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3143e1ccf5c8e4d7486dd41f768545b38cb1caaf615563495f4f244a3659bbe8. 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/USAT21602231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62f781d6f34b03ea329e5ceaf6fe1f2b2267bd8611a76180c6ea4379efc94a98. 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/AUFF01500784.
One In A Million: A Future Classic Compilation
Never Be Like You - Teengirl Fantasy Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0f10f828db4e21a212bc0e6d7b20f33990eb03734703d0b2acced65c6f194fd. Chain 2 (Bitcoin): anchored in block 960170 (2026-07-29T23:52:38Z), 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/AUFF01600795.
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