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 0xa863b96e2c641322dd7754dcad97b4372b0fc062b1a992dbc654632eb3c3f592. 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/35438a29-df2b-4c11-bf80-2c7f42848c4f.json and https://artists.proofprofile.net/proofs/artist/35438a29-df2b-4c11-bf80-2c7f42848c4f.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 0x9eb51003b132fb0c9c82c4be19a75223325535c042d6ce849d5aa31653b5bcf4. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/GBFBC0700357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb74a8b0efd1abfdfc69d30615f8a739e587d34b2e3c015f0c187a3ab006546bc. 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/GBFBC0700358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7463b3d300ee4ef9b1ce449f366bc7f1d352b00a32fd65c9c7f062287f6acf32. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/GBFBC0800412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1b25889acfba902ce022fa31d06a5c4d21f05adeb3814f4e86910912699154e. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/GBFBC0700383.
Ya Lookin' Tight / Soopasoul Theme (7" Edit)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ceaca4933309d6a49e937e21db686b20cb8d816fe052a233c2744fcb2ba2700. 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/GBFBC1801737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc42a24a74e872899b6e9af739ec030f72ce70d6eb0079ece0dbd9b4ba179b3d7. 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/USA2P1298202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x928d03ef343cc799857b05c9939b2344c4de3e26a47dce16db82f239c6af584d. 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/GBFBC1701656.
Tribute: The Finest Cover Songs by Kid Loco, Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9f77b4808ca7b86aea10d4fa5c85fb8951016cfc405cbf738f536c92f43ff41. 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/GBFBC0800411.
Funk n' Beats, Vol. 5 (Mixed by The Allergies)
Funk n' Beats, Vol. 2 (Mixed by Beatvandals)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x833c3998c548f05dcc7d0333e4ebe24a979d8fd4f46412dc088181abcbae591d. 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/GBFBC1501249.
Funk N' Beats, Vol. 8 (Curated by X-Ray Ted) [DJ Mix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x813283036f6b5a7e9f28b973f0ce7dad1438ae082b8d24b7bbfa1718a111d180. 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/GBRGV2161917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x833c3998c548f05dcc7d0333e4ebe24a979d8fd4f46412dc088181abcbae591d. 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/GBFBC1501249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa28262663772ae6b1c522a89899ab3ae57393cfea1047f515760b451b251d771. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/GBFBC1401146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb17534e80977d60a8e264ff268fe2fa807399042553dc713ae348ac781653fc3. 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/GBFBC1701680.