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 0x7528a653300198f28cc2b1104a097d77bc18d92771e16a13b74f0472567af907. 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/683d99bd-274d-49c4-a9c0-25230a3bce28.json and https://artists.proofprofile.net/proofs/artist/683d99bd-274d-49c4-a9c0-25230a3bce28.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 0x44761ddabae38c43478f14d3149e0dffc3cdd7ee29c334dd0d8fdedb17cea7bf. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/GBSV81200023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbeadcfda1165d3065bf5543dcb780b47b1bfe14eb482fd82db5fd52763c29cda. Chain 2 (Bitcoin): anchored in block 958988 (2026-07-21T09:08:06Z), 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/GBZBZ1300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe8c4ed6c824a0176878774dd127cd45e10a34e053268bc51a7fbbff42e4552f. Chain 2 (Bitcoin): anchored in block 958622 (2026-07-18T22:58:55Z), 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/GBKQU2020794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e880824124af8207713ae582192d7a5a5533e82a12dd595fb5e5e952b9aaf0f. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/GBKQU2161960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e880824124af8207713ae582192d7a5a5533e82a12dd595fb5e5e952b9aaf0f. 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/GBKQU2161960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c80ec33ef7a7658d70e17d4e7c8671b3b79f97b3c99a7017c2343776463195d. 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/GBKQU2161980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e61bb35cf51f78b5b95c74fe1a0cc0a94ef76808f729785318e2589da530789. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBKQU2202101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e70a927ba7343dec77c9df2c6d2ad2e91e1ff8cb2693794aa0b85d8f4710585. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/GBCEQ2200052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff4fe2b9b97450768e2eac4ffde30c4dbdc8b0a5af80b0dcb9b45f273ca160cb. 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/GBVPL2300054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ffb849b097027416729f27563841bcb4e9352f48d46f3a9d0a078943e2fdb03. 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/GBQGW2300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x452643fb23f1dfa32ead3f07e78638a8191b9ef43697099c4e87dd6cadf30a5e. 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/GBKQU2410942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x771b1576f58feacbb6f036ede96331e27c5e0fd0425ab98cf376b858e1395e11. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:07:10Z), 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/GBKQU2413804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50db80029691f2b20e7f88430fcb3d295dc5ea6b7875951339bdf1e3eacf18af. 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/GBKQU2413805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dafa3193baa61c071831670635d1e0a9115ae62ec9557695ea9f55ed604a779. 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/GBKQU2413807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a4d0933fad64e0b49d8e8a9907471fbac13ed674f9fb52df2487f4d6e15849f. Chain 2 (Bitcoin): anchored in block 958422 (2026-07-17T13:35:31Z), 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/US25X2400282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ac209c5dabb360800520d92478afa86941acaed66a93ef469cdb2ab9ac7314d. Chain 2 (Bitcoin): anchored in block 959054 (2026-07-21T20:19:31Z), 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/GBCEQ2400059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe57a398d23d6832d8ead9ceb0bdd259ae93bab6cf47a2aaa5a03563b14b6b759. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/UKEWB1600430.
The Adventures of Chimpo & Samurai Breaks
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37c0ccd42b8fec5e012ddf69a2098ab750d2906cb167c4d06114f6d27500c5b0. 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/GBCJY2000671.
Aries & Kelvin 373 present Born On Road x Jungle Cakes - Welcome To The Jungle (DJ Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x493a2b53e62ccb18e20c986446ae555dbaf9dff06957a2252abbecc78b0befaa. 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/GBFG92000431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4f8f7dd1be629601437ca287558c27eb3aaaeaffe0965b2a20b2db87905a7c3. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/UKEWB1600231.