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 0x7f55ef6895fedac8a1344ec2739170fba5152e22059163cc508e2318ab551147. Chain 2 (Bitcoin): anchored in block 953727 (2026-06-15T02:33:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9035c641-b7d7-4815-91ac-58f40daa4770.json and https://artists.proofprofile.net/proofs/artist/9035c641-b7d7-4815-91ac-58f40daa4770.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 0x945f881f6ce3ac75952eb7e845a1948d0ecf647429922b8198964505852f7e4a. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/ES75E2307899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9188f53e8c883245cd0ddd7a8bbdf31238fc3b429a7fcc2c4cae1a1818ee16f7. 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/ES75E2408860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6c2b5d1e0729d2a4feb6561dbb8cf8203ca7e1d959f763da8ecb6d63028e062. 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/ES75E2410730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb3275c4214f6361b5231ad219224ed48e9a8f46d5304353415fc405a3fc603e. Chain 2 (Bitcoin): anchored in block 958775 (2026-07-19T20:13:58Z), 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/ES75E2410732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ae4bfb91485a14a22704956f3df1ffc9299a14ab0fc067787b1e11c3ea4a522. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/ES75E2410789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d9c38f1085c728661b12c90d992d183322a333ed927961bd81ae09fc0a27e98. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T17:40:48Z), 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/ES75E2410790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4be53a79c054ab30a476d023fc7e7259746dfab69325ec2b2f0304b0c3f28ea8. 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/ES75E2410791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e7c978b9fbe69ccd65003cefa618fe8032f86e074d055a0d9ad622761d1213e. 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/ES75E2411137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1c679164121056aa32733256f2b6d0ed16bec1d35abd5421dc2c3d0a6f88fb8. Chain 2 (Bitcoin): anchored in block 958667 (2026-07-19T05:04:54Z), 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/ES75E2411133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ba9591e3c738c2bcfb753b7adf46424f792ad15f8d5e5b51eaf7b937a08b058. 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/ES75E2411134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c2bbfd09325d2b9d6efb3964d6754a99ccf82cc6ca29999ea2238eaef290c24. 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/ES75E2411136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57cbd8f3f9196d4221036bd4da6b4cef30aebabf7e43a8ee830bdff47a3ba5a1. 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/ES75E2412904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b37629fa1e5e00d69a80c2db8979b5954d72095d3bcc3fa0b3a563f3e36bbea. 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/ES75E2413181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf297306f0d699c0a8a361c116e540c80feeb3a6dd7c569b935d5e8e0963ffff8. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), 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/ES75E2500215.
El Imperialista Soy Yo, Vol. 12: Imperio (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17854232cb105f40234e9b19ab73d5d25a7e3115cd9cef208a09f7fade7ee220. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/FRX201666362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaad9f070be4c8c3f11da12cf31f1ee6cfaef9c919e23aab1c9e2a545a7f43d3. 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/FRX201642276.