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 0x31e91db45f1fc558e5e03ddbc9cff272676b5b7e6a25e5e086169891673d0a92. 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/0d3938ec-d0fe-4b83-830f-258a29339a92.json and https://artists.proofprofile.net/proofs/artist/0d3938ec-d0fe-4b83-830f-258a29339a92.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 0x82d2e25f9b04f91bf85d32f3cc0295795be328a95eae3cdb6296575e0be84b52. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/GBKPL1787203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5e3c2859670cda43fa8fca9758b454ac58143cd0f23b5ee1c311d7237e48359. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/GBKPL1793885.
What Happens Afterwards (Salami Rose Joe Louis Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5783298f724d6fc7e7999b337b5022453e35ddf0e8f283c18087b9e399c5a527. 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/USA2B2102430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5ba2bc96ecc8c1bd5b356ff7860cb9bf04242758f54b375e27d5b5f3c2b5c4b. 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/GBEUE2300085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d2810f5f1dab2065354403d4cca38911783571818f2c496045ff8c9e6d43a99. 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/GBEUE2300083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3efed6c7a12220b847b726a2f3dd3705472e747fd8059831fdb9f2880cc51f38. 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/GBEUE2300086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4238720b9dcdacd48a3d4886f1e68210d55116e0973ac598b3754ca8402ce122. 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/GBEUE2300087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafa09b58d981880ca531327f3aed317793d2b1960d7707560395d58709b58cf9. 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/GBEUE2300089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43ad01b57e844cbb07f661ca6115ab6eac9d9dac80ec08fe6f4946fd1d2468a0. 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/GBEUE2300042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5ba2bc96ecc8c1bd5b356ff7860cb9bf04242758f54b375e27d5b5f3c2b5c4b. 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/GBEUE2300085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4238720b9dcdacd48a3d4886f1e68210d55116e0973ac598b3754ca8402ce122. 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/GBEUE2300087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43ad01b57e844cbb07f661ca6115ab6eac9d9dac80ec08fe6f4946fd1d2468a0. 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/GBEUE2300042.
Throw It All Away! (Jamie 3:26 & Danou P Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6e06baf7ac7e21265355aa60aa62f4577181cd44210cfa3f93266bd5d9db445. Chain 2 (Bitcoin): anchored in block 958104 (2026-07-15T05:34:05Z), 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/GBEUE2500021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6e06baf7ac7e21265355aa60aa62f4577181cd44210cfa3f93266bd5d9db445. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/GBEUE2500021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca6d12cc181db44e5b6a9f260751408326d19a70b546cb2ebd65ac586976d30d. Chain 2 (Bitcoin): anchored in block 959145 (2026-07-22T15:39:05Z), 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/GBEUE2500017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca6d12cc181db44e5b6a9f260751408326d19a70b546cb2ebd65ac586976d30d. Chain 2 (Bitcoin): anchored in block 958091 (2026-07-15T03:17:03Z), 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/GBEUE2500017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74079b8d8038e2dbaa858e9857b2029b93bae50a9db4c0ec2e3daf751f58ebf0. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T05:07:47Z), 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/GBEUE2500013.
Hold you up (feat. Annahstasia & Steven Bamidele)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7e6b8503affede750c792236e0a45c3cbe0d2e68b23e8204152da0df02188af. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USSM12205590.