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 0x6efeaa5f6abe9beec025dfa7c57fbdd97bd0b804fed0eaa5b62b58d801a98b16. 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/80b921e9-9f06-4eff-a44e-9951f6de4ab8.json and https://artists.proofprofile.net/proofs/artist/80b921e9-9f06-4eff-a44e-9951f6de4ab8.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 0x6e0cb2dca1d0e5d8d8d288699ac46bbc07f759c6354c6743f5473c81b2ecd34e. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/FR59R1641812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd65bcf60779c277d7500d34685f9e84ca2e62b97e2b20f21c5cf1a17ab057986. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QZ5AB2041630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe15b34f12b39959d9cf46569f69d9d6ea029e9d50dc070a3b41fc97800051711. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZ5AB2041633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd104124e3ba8dc375155a01e6e43a43a0de58cb00a78b58c6a288e5538258e08. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZ5AB2041636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x184deb36af47393cf74dfff85b992d6a87750402312329a279ce684d60a74b17. 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/FR10S1550593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebb22684d34182ee47b1acc957208cc36030ca80ef5d8d81465c1da3b6c255b0. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/FR10S1550594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bea7b63be57694ccb850b394d52c6e5b42c480db7f80d5349f1d533e8c3c263. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/FR10S1550596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7f457b71f4e0ca9bb89a9364a28e809a60c426dacaa02f836d378b4f8bfe9fb. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/FR10S1550597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb485a1cfa8917070902be64d66911ca5a98d3cb1bd40142b742ae046ff93166c. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/FR10S1550598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x707f76182f773a01d885c9a4b730d017ff893fc6c1abcc7d425335fcdb9bf46c. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/FR10S1550606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3574d570a66546b806f92910004e0fa0c154f7d09bd7f81cd685d3aa9272048. 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/FR10S1550608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8988c00fcb2b5944a4191e30d07ad613b5a9b6794a4936e15cec297eac8a6f5d. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T13:32:33Z), 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/FR10S1550609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74ad4830406c463105e95b245b4d732661f3e8bf28f54e673886a6642e2b36cd. 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/FR10S1550610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1c7c3b9ad51a861a0d79c59e9c98457bdb383003dc3ac25371f846abc39e163. 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/FR10S1550612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29710bc0a71d6b1541431d740e4395fbb775f886ccb78e94f70c94690da819c1. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/FR10S1550614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e0950bd4c52a93d3ccb9ee176705876f55b9d67813557d6664933e68640562e. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T20:03:27Z), 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/FR10S1550620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d21d0716a5d8556e31abe00b12219be9c91ac372a4d89a220ced8f7dc71253b. 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/FR10S1550623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9457f98c6070d70acf962a9d0b5976ed046caa1c3ea4245098d332a4784456ee. 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/FR10S1550629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7917502fab48197937edf086d194aaeabf496f33e181594659b0ccc79c4615cc. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/FR10S1550631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c5303638db775bf168adf44d66838befca051fbdf64b32204acab1d4f2974c7. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/FR10S1550632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x181df7ac34159b7e975d9b6c3dbd37b00259701299882332022dcdcd7f518858. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/FR10S1550634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40d32eb3ea82eb43716dcb30b2fc9ac5a9cb5206ce3e7ce22a9c3e6671730450. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/FR10S1550635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72e46dad708769c9eb7e246232a11b44c8fc36a0b7e66031d736b1009afbad4a. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/FR10S1550637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc733dbdc045256d0b2d77e4e34334ef91aaac66b761d6fe6f9fc736199da372. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/US7VG1851043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f3e4d0ac56b076bc4a7990382bf65d29be5764f2c44370e798dc805418722aa. 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/US7VG1851044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x390de2dea9968fb1550349375d1bdce0e17df0a822153ff1540d087482583aaa. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/US7VG1851046.
Alegría por Encima de la Tristeza (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bd197e01150fe2910b100887d81756a9e59ef3a880e99b1f84b875a786f2b28. 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/FR2X41539927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f34ac0b6c9999b901ecb03e242bc277ecbe5fa12338c8bfe52515bf89ebc8d3. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/FR2X41539930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4fbd1bc587320d9edbf4351caf6b09072e12b458c4b158a6d59e38ba641d8c4. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T23:51:25Z), 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/FR59R1641808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85c49acf10bdaa3aaa0b33d1ffb8e572fc944d0edb0c99bf9cd4bb0e59a1e8bd. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/FR59R1641815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fe4abd0e7da0cc2e1e8f20cadc075d696f712e41bbc62a58cdcdd0d36bc5407. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T09:04:56Z), 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/QZ5AB2008363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x944e6c35d866ce2e58aefcdabc5fdba48dbf225ad5d324fb2ea2b3058f42386e. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZ5AB2008367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46fded6a1b587146bf1051e9acbaf72c4472a339c247b6d1a64653fadf1b87ad. 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/QZ5AB2008368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f6b19461994b4951953f70402b8c30a3ee5d67770dfb5f933c5f31433bc3ffe. Chain 2 (Bitcoin): anchored in block 958714 (2026-07-19T09:51:44Z), 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/QZ5AB2008371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4be3881c84f8d721a23d55f82acf0ce9227415851f7d161621ab79f79b89e325. 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/QZHZ32134630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e8ecf95d5ef0f383e730e01350d7387e750cb96ed025226f922b1f5f9b4f7f2. 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/ES71G1412601.