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 0x91738f19242b4a99adb0e3006fa57b23042ca36a2f85fd1f7ca83622dac5f80b. 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/9c77021a-8a57-474b-a05d-2b21b18afeb6.json and https://artists.proofprofile.net/proofs/artist/9c77021a-8a57-474b-a05d-2b21b18afeb6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Can't Smoke with Me (feat. Mobsquad Nard & Mobsquad Snap Sosa)
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 0x404ec9b3413fe68a2590d9a2cfe9f2b17539cabdd7fd227dd2c6ff109f53cec6. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QM6P42303633.
House of Blues (feat. Big K.R.I.T., Curren$y & Girl Talk)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc3d343a99cf097b83b452d2486975e2b9b76eb4aaab82dbb79d79e5041a69ab. 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/QM6P42303629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65258aebf79571056558e07140334dc959c3704639b327a3cc4f85b9ffcc3d6b. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QM6P42303636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c66973e00bbd1cc9ba553b90e1e134f3ba25519dc001423a576dc6a5074ebfc. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/QM6P42303627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc52b8c1b0a3ddd5fe1f37adac16cf52e1be96f1d970dbc4c6658ef92dabe29a4. 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/QM6P42303628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0148ef5986c53d94f6ae92c6c51f1147bd1a375b2468dadd00a6c8bfa149829a. 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/USLD91743199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7095470de1bb158ebb6bf40f6d75389989921ef221751f21476697229145c43. 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/USLD91743201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74c89e6590547d279ebe00a86aa4282a377008cd18c104af5fb997ce7d576a2f. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USLD91743202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x306dedeb4d5cf6ec246a2348f6bbbec5fcc0d7f9d51b9f8cd03419ed9b47bd17. 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/USLD91743204.
Kobe (feat. Guapdad 4000 & WHOISTEVENYOUNG)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b54e12410afa428084c67fe7ffb0a064dd778cd0f0f5354c7d4070bfd9bbc80. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/QM6P42303630.
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 0x9120dbfadae687edce6a0b7542ece7aa458c1b24f2d0ea5cdd92b1633058dba6. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:02:43Z), 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/QM6P42303637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24b53b46b2d9b729b51083bafa9b7f3d0c65e3379beb8c7c20cf9679cf711aa9. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/QM6P42303638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe07aeb9896efa623185656bd7a1dc4a452e16a4075e858661f5c228efaf2f9d. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/QM6P42303634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdcc5a97742bfb3c9fb9431146aace9598a222b096827598c80d73bc1b124d6f. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/QM6P42303632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4b33352a8ab14c06648660a34dd0d80ffe7f4893750e627c84dd2da381881d7. 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/QM6P42303631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb938e9068f9fb3088d735b29295a7a6950c9a5c7d10a068bffbeb851edc94cad. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/QM6P42303635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x464d74769a5ea82b940910fca5be6dad0e4ae7e02268fea62d3b6f4c30d9b605. Chain 2 (Bitcoin): anchored in block 960173 (2026-07-30T00:11:40Z), 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/USLD91743198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb947fa58fa7a970fe6d93aa65b1e6c87193c9f2dc8cee8f59b4a779d310ba29e. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/USLD91743200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6292b673e0cb85384b794cc409755e778260e9c01b9072cadf3e3448fafe6e21. Chain 2 (Bitcoin): anchored in block 960125 (2026-07-29T15:38:18Z), 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/USLD91743203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ae8447506f9e7b985a8d21fb51ac7964e7891ee1cbf3cf8fb61795e04e95d7e. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/USLD91743205.