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 0x7eff11f1fd8922d6384fe957ea2a87b2d8d34358c9a71356a9b7f5ec8c5dcafd. 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/026d3d05-687d-43bb-bfa3-08d1ee9b5b62.json and https://artists.proofprofile.net/proofs/artist/026d3d05-687d-43bb-bfa3-08d1ee9b5b62.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 0x19617409e384de288df2d9e986c83503e9ad53806a67bd69d4510420b78f9648. Chain 2 (Bitcoin): anchored in block 959096 (2026-07-22T03:48:36Z), 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/PHS032001327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb240c249e34c55ee5aadbad423054ba2783b7eb483b7e7c845c9ace735f946e7. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/PHS032001381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb129fa7d06798af93a30b6efd83cb60e88a967cd6aa9f6df0b1abd972b86ad6c. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/PHS032101906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4e456161bf2b205f1160be3057279893cf6301aa7340851ac7588f1af3c1b92. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/PHS032201938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7ba2a618fa22b4ec5d488717ae31df9bc78c5648f839215e209e68213dc8dc0. 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/PHS032101878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x858a8dd1d1420915bffa73a3e703b2a5eed06d782e75abfdacf126a9723b41f5. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/PHS032101881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a909597f939b74c0521aa0649c9249ea1f9b9b756c6cf821f419e62e7aa3944. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/PHS032101876.
How To Move On in 30 Days (Original Soundtrack)
How to Move on in 30 Days (Original Soundtrack)
Must Be Going Crazy (From "Lyric and Beat, Vol. 2")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27781ac23f4b7298bf8b66dfe8f1b296c817ab7e8c10dd599da1f14279e46dab. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/PHS032202156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d40b3a2b52e32e12efb7e847e19b277213725030a37e37a9085047206f50454. 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/PHS032302352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecaf4fdfa611b2fe7415b3478609df77b9eff7bb2c4e4cc8f0a767f5828deccc. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T15:31:18Z), 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/PHS032302394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27781ac23f4b7298bf8b66dfe8f1b296c817ab7e8c10dd599da1f14279e46dab. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/PHS032202156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x250d405b933034cc76392e37b7be34e845afc35bd4668a69aa0d38cdc065cafa. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/PHS032302247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21f9e6c59fba0e671e21f95586b94d13b740482f5b6665ea3cac07f2957feb7e. Chain 2 (Bitcoin): anchored in block 958708 (2026-07-19T09:08:25Z), 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/PHS032302398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d40b3a2b52e32e12efb7e847e19b277213725030a37e37a9085047206f50454. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/PHS032302352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48f6643138da38e9d35bc3e2590581e56d08bc32a2cb9c58ba4801c450967f6b. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/PHS032302396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6ac8c0817774b0047216d5c8483fdcef4c9387722ddf107bacfadde4adbb106. 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/PHS032402799.
Parking Lot (with Darren Cashwell & Chie Filomeno)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cc1311b4540321ed934deb110ef313ec9dcce363baff568da57060434b7a9e1. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/PHS032503203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2872171546f237e306efb869fbf7748642429ea41ee698c9cdaa29ccbb389efc. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/PHS032503204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d71c463f0d8e61c3064be151952b3433087afc4c1e0d811b88169591da122bf. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/PHS032503205.