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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c820ae937330fb177e67664d100fc918c1b1ace5c15b6217f148364c34b1943. 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/2806421c-5845-40b4-9adc-7dc67582b4b8.json and https://artists.proofprofile.net/proofs/artist/2806421c-5845-40b4-9adc-7dc67582b4b8.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd583e6bca40562b99ac9a694893d1694686f168ace3cccf8ab58f46dead77af. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/HUB831500129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d624b866c0ee971c845a33fd67118ad0b7b31236e8e4f372ece81d06454ccbf. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/HUB831500132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf885a20963962e8158fd72e7302ca055984837c2caace424afc2a0d57050a86d. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/HUB831500135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47d46fe2d389d00b9c6496fb36b96eda23a9b03a4ab971a00b0cc9c525183be1. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/HUB831600010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3ee7b8584a3eb3279220754f15ece4ea0b17f7bc1d667cb5d10e288641296be. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/HUB831200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf434cb7b4901859c1d3cef16e1d27697d00ba7cdaf0a1e8828656643648a6e35. 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/HUB831200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3e2529cd6a126998887634474539aeb266325cba5e75a86385a4c7f41e9e1f0. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/HUB831200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8736b5f396c74d5bd23b9d4be48ebfb95c54599cd9f5911be523d188b3eaa769. 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/HUB831200010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdefb461ffa363048830b5e36d52081ccf64a1653f683fb1cfde6c8628a8f59f3. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/HUB831200011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ba462ca3983aeb2515377cb6ce8a29633cc99470de488540c94789577a2d3b5. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/HUA611601201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc638f7f54cd63505b15db6fc77b89bfed6152e5cdb9d56c31f622e02a408ec18. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/HUB831200006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4cccea9d19e7437f37c76c9cb403b8901a322444658cd32fbb79ceb2e4d71d3. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/HUB831700015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58fff567eea87e0d38ce48e88420be2a597078ade0f3bdd76197a80132bffd3d. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:33:14Z), 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/HUB831700019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1318ecddffb63c66f69ba5d78d7ae16a34e47bec4d6f385a8b3d1cd66fc5e253. Chain 2 (Bitcoin): anchored in block 957876 (2026-07-13T16:00:32Z), 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/HUB831700020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0d3953d5c6c6484dfe2aa3d72c542c353fb9c53c6996bfdaa7fb9f620a64b1b. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/HUB831700021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cc2f84aec90a3b428d38536597c76c4bda7b18da28819408fd8fea61266efa9. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/HUUM72100619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1923ec240655e19a599a406d57d5c092964c5395bbd13cb635cfd73c19ee67b. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/HUUM72100623.
Bohemian Betyars 15 (Live at Budapest Park 2024)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb88f43938a93f70c899b2d502370f7725a13846aceb2830cec50ebe4292c54af. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/FR2X42527599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3790d80379ae5497b039dde9e5c31611ebde5a141d9665eddf2e9e632b1ce783. Chain 2 (Bitcoin): anchored in block 958644 (2026-07-19T02:21:25Z), 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/FR2X42527604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6845e12921d897aba0d5eb98105ed64910e32d88d0607a4638241d866a189b5e. 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/FR10S2406537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0df668fa281da75c0e502edf33bc642f23ea24e327df854cc050b292c3c813f0. 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/USA2P2470170.