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 0xc9fde264dfcb6f3aa4dc92a9b3a364437002f0b4692484d2b7e7f6aa44ba2f43. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5f06d50b-7e0f-487b-9876-a4578c3130fb.json and https://artists.proofprofile.net/proofs/artist/5f06d50b-7e0f-487b-9876-a4578c3130fb.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 0xfe5b5a22eea6580636c810d4a808b1df5bdfdafa7c87407b97370760c5b831d3. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), 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/USQY51296130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9522c18bc46542567fbd050ccfe3c5fe5b5803c924523b64beaeab09ac9732a. 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/USQY51296131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe88e692c5c43c6b1e3bfc19dce1ccad8ce82b74289b39026c0f15e8c08a938e. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/USQY51296132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b7075a6554a25f62811d0626c7a814b8f1da090591bfd4660ff63830b9689d4. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/USQY51296133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x685e8d5f8c9084451131e278d2d1df577a9363cdd6bf697b3e94d9814a4164d8. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/USQY51296135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x503c6bb71ecdd7208934dfe1fde493216f8c24b4191251d2126c35c2575673b3. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/USQY51296136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb03904d073b01231182c764ca0558a217c08b8cac5447f33fa45da2182a04da. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/USQY51296146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd96933726347340462e016061c1c5fa4655d06f5f8c8641bfe011951897b663e. 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/USA2P1374698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0aa667e42cf71860e1985c15d3f134878f178814b7fa431b383f0064e32451fd. 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/USGCV1499793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x844ffba3ddd5234596e7c9a6b81c63b916eef19515ba4c4b5a3d7517874f30bb. 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/USGCV1499784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc9b17786bbc23dd476eead07ce7f66ad896bb9e64479d0a2b8f0d6934e9010c. 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/GBLV61506906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a5716ae8e512bf18f3a2b9752321e7e9641dbda42b81bea889e54e2ad394abf. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/GBLV61506915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ddc781b841e364d4292d2ff5262e36fdc925e9f9d8e6fcd33e35724de289da4. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/GBKQU1673321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x969d563331f5310802067cd4db782aae4399f48071ad1830fb6df5039cf1b74b. 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/GBKQU1673325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1749d989ebd3a96dd9db2f05149519e7123bd092f40cbc82a5ad6a5ffaa01e71. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/GBKQU1673327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x802b775e65032d1696f03d42a4ee349f65c7f1ca31fbf800c2412ba207501e6b. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/GBKQU1766637.
Keep It Psychedelic Vol. 2 Compiled by Regan
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac009102828acf139eeff3f7a7e559e5d7fdbbfeb41254b663b8ea675a38b377. 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/GBKQU2156890.
Keep It Psychedelic Vol. 2 [Special Mix Edition]