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 0xd59c299af5115c553115d6613b544af21407d7faba17953e5431915080f849f8. 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/2e89a1f6-bf5a-4a11-9d90-b10725eb461d.json and https://artists.proofprofile.net/proofs/artist/2e89a1f6-bf5a-4a11-9d90-b10725eb461d.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 0x1cc9e578b46bb99a4400afbe939d411572349227c8cb4cbc65a0d3850b46e747. 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/TCABQ1366311.
What Do I Have to Do (feat. Dumbfoundead)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdac6a6524159543136fa1600f07a18b53d60394732df322d8df57758690c3f58. 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/TCABQ1366313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f5d9f692e072b7062d141d770d78a8d0d59aa94dd81b894fc33cb0a4add466e. 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/TCABQ1366314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63256f40dba86ed1612f2039029bb4c77e9958b4767c1c602000526dada2b3c0. 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/TCABQ1366316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ac0aa0492c6328f3713edffc8d339bf97133c9fdbcb33282af53fff7255307c. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/TCABQ1366321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadff0b475a53ebd6703f86e211dc80c15959fee3cfe2311da75051e45d27c667. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/TCABQ1366322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e84de02b0fa214b3ae282088da4ddb59bf92c4472a2a7ef63d1d69d92505526. 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/TCABQ1366323.
Fly Young Gentlemen (feat. Dyme a Duzin)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdae22cd4db8fd5f3cdfbfdb249807f5a5fdbc902e0fa7de9d4314f5908844ede. 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/TCABQ1366324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb49cf1e01b36026beb13dcb9cda3742a87e232c8aa8628cb269b6456bde3bb77. 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/TCABQ1366326.
Chillin Here in the Atmosphere (C.H.I.A.)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6d3a3ccc00a63484fd79477b21d833c4235ce13540f36ab8ea838d24aec2303. 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/TCABQ1366327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a9cf13b0de26f788578ee84ddd4212c4d8a80d785e2dcbf710f89042329de26. 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/TCABQ1366328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03245936d80a5f0ae1bb49418b6e87d9b00b569b2179b2cf0adf9b60615be7f6. 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/TCABQ1366329.
Charlie Sheen (feat. Dumbfoundead & Jin)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2ea891a9a987287fcafaf5dbdf5e8fd1428fbf885ac20826de238c6a2ac9794. 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/TCABQ1366334.
Looking At A Monster (Instrumental Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcba7b07604f02d2029f11ef5f8e82caf29d0d7649c57ce9cc61b799aaf9a8f3f. Chain 2 (Bitcoin): anchored in block 958506 (2026-07-18T06:14:51Z), 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/SE6HN2466357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3af56f300191b1ddf32a2e04253f1fa7093ad5536279ecd1149f152ce8424d4. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/SE6HN2466358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16c12a6005ada3999387dd000363c2f5bf016ceadf871f6cd74aeb899263323f. Chain 2 (Bitcoin): anchored in block 958506 (2026-07-18T06:14:51Z), 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/SE6HN2466359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84ae55b5088e175c3435dcfd4ff5d240108bb4678fa8e5b8c21a327ac14eabc3. 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/SE6HN2466361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77fa38f230bcc75a058130fbee695100908af0928f5810ba7b4b4ca0c20e2924. Chain 2 (Bitcoin): anchored in block 958558 (2026-07-18T13:44:16Z), 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/SE6QE2492736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa663b642d4f0b2dd8be31c5b55fdccd8767aa0503261c186f6b10e55035d434b. 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/GBDMT1300930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b57b2e67110ce7aef5c7a047ced76e27d4481626637a34c83ddb6257b8a8af0. 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/GBDMT1300931.