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 0x732c7dd47bc31c162a8e9baf0bdc02efea4c35317ece8cd733b193f9ec064b41. Chain 2 (Bitcoin): anchored in block 953674 (2026-06-14T19:07:16Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/601613f6-b41a-450b-96fb-d6f51c41b68d.json and https://artists.proofprofile.net/proofs/artist/601613f6-b41a-450b-96fb-d6f51c41b68d.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 0x34ea698d42ec99e10aa7ac6d7c6f203c96c515c17c4128e92f2bbdc68daff731. 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/QZK6P1934158.
Not Enough (Wishful Thinking) [feat. Wink & SoSoon]
Hymnal for the Lamented (The Substantial Remix)
A Soundtrack for Fatherhood (Inspired by the book 'She Sees')
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb084ed1becfded9cf003702e5932c5df80cc4c5e4d3f7d46689f2ac0922a224. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USSTG1900016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8619d262e0c4029ddc2a17c46f48d5131b25dcd77bd56b82dd936c38ef9d1531. 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/USCGJ1452978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30efe44cbec33a87d004c41aae47fcafabf21d12eefb7f12eeed310455559f2c. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/USCGJ1452979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x417e0c5ded52e66e994a6219c4ddce8ca1e5ff4bac1c9bce5150135add30cc03. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T16:43:41Z), 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/USCGJ1452984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe170a34cda6afda8ccd85f6c3b3576a8305fa9f6c1a318c4debcf77c3693090d. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/USCGJ1452987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0823f85bd021b738da5107f0a3dbe29bc4e98576f860ba4da15893d64ff5e21. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QMSTG1100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45ec36f515655b9e4c6f66995dec2fb0a0f9f4ad930bc1c23378deafbf165b21. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/QMSTG1100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48e6ccdb59e0f53ee2a3955cddb1e679be13cd89bd047881a8fd100c6e599572. 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/TCAAR1050430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9836c436855dfc2394878bb684f183f7242a1d91278ec684fff925b77392e29. 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/TCAAR1050450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x545b87b4b3df9f266dd72c7d413dc8b97c06aaada953ed9d81bcabb489033438. 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/TCAAR1050456.
Music (Interlude) [feat. Stephanie Gayle]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x908c87c8bcb8db59ede6f7f8b71404c811201b57a9c942e3eb4471f78cea3cd5. Chain 2 (Bitcoin): anchored in block 960163 (2026-07-29T23:20:38Z), 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/TCAAR1050465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf77287fa3214e5b41f3cb2b80131920f1e0a4cf78dd79512fe30cfede7654def. 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/TCAAR1050482.