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 0x94c2ba6b15edfdaf35850f17d57c3218f130009abf21401e819b3cc69d2193cf. 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/f105443e-0f7d-45d5-bd21-b46ddbe2aa08.json and https://artists.proofprofile.net/proofs/artist/f105443e-0f7d-45d5-bd21-b46ddbe2aa08.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 0x15dca6a08b033fa575606d20d4a4c2163508f7c7ebdc28af63f175bb809b0c6a. 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/USDHM1907392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x123f369be1d4ee10ee3eae465a3059f4e2167dc0e33b8be9a6283a0499a5d6c9. 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/USDHM2018278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cdacadb94495d6bcaddb3190341f750d82877c8e790a14cf6a3d5ba4c57d3c4. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/USDHM2018280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62f4dbd01d585ddf48a760eeb31f5725e416e9e0dba07d4f064ad3735070f395. Chain 2 (Bitcoin): anchored in block 957663 (2026-07-12T05:58:46Z), 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/USDHM2018283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9687c2afe534dd5e3c8ad76cb604d341c0aae01186559570a9a85a99a94ae8b8. Chain 2 (Bitcoin): anchored in block 958705 (2026-07-19T08:43:25Z), 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/USDHM2018271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9685419e6163834809b091844a1ca2b6b5d830754323dc6e740d4ce9ebb8ac3. 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/USDHM2017771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4729e90f3b123e695bb2b89defef9bfda06fe54c3fed527dad7035cc6c2c9495. Chain 2 (Bitcoin): anchored in block 959103 (2026-07-22T08:20:13Z), 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/USDHM2017777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc62773f1bc9c98c0387c3c64b56521d570a26d2f377f7d778719f1cea9aa7c0a. 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/USDHM1602397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc948c22044127d3eee99a1d0acefe14d300a63176379df08632a69fc83914fda. Chain 2 (Bitcoin): anchored in block 959089 (2026-07-22T04:29:35Z), 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/USDHM1602398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6c189e86b73bb6e72969d738df124115795cdeec782450576cc823ce1472fe3. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T19:17:28Z), 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/USDHM1602402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0aca88ddcdb3d53d2c7fa6c6abbbfeb9fa79dd4e7d9da170fee4c06f0f39a46e. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T03:26:15Z), 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/USDHM1602404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x678163ba109ec060b02096d2856430abe63ee6aaa20deece529d8574f5049562. 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/USDHM1707024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x941fa746f6f4029188f23d0a22803a032e9e58fe050ef23b7b378fcad1ffc091. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T01:08:10Z), 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/USDHM1302091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49bb36d5e2d88c7e10c4ea9327c8b23e2eb602e1fe6f5571d260402ecf6226ef. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:51:07Z), 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/USDHM1302096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc64ef834bcd915fba6964bb48809b6789ab362c6fc1dcf4f28ff2e2ed01162f. 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/USDHM1302099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5028a4204963bb96e1310ba429bcb27ded507f9e2e917dd1671356bbc0e8839d. 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/USDHM1314804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62eb9a99465abb0dafbd03299f5e634301a7cad033bab6d5ff442c10a05e6828. 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/USDHM1419572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c09a214f2fce1b83614f64982165f6a3aa82cbc8342ab60ecd738da6e50668d. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/USDHM1509811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6239bb4ea9cb261a2d6873e50a0c41574ffd97350217692678b515a4ad9f6f2c. 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/USDHM1509812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ab75baba937806d8903719806a41defa1e6ab70ed1d47bfa1f0b9dbddd8713c. 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/USDHM1509813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5b6072b6d7684fa0cfc8551ed133c35969ca92c725aebf9b03e7acbcc254f55. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:11:25Z), 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/USDHM1509814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ecda7ee94cd6390bdd3e30d3fc09c7fa43c5d2849a2fb37791a0942d105f2e4. 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/USDHM1509815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c8d659b0cf83651bf4fc41f30ca05ce76ee365519fb3eceb2c83949460ad8b6. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T01:43:19Z), 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/USDHM1509819.
Nuestros Mejores 16 Cantos de Siempre, vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd19ab33473e43fe7ec0844414219f766dc2dba345bc95c6f38a558e59a05384. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:32:26Z), 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/USDHM1518727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a735065a94497ab0577d1e0ce906f1be8ad7ba4f4be376496a2bf4bf27a4f2b. 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/USDHM1520891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ca027a6bbdd9c7f960e655a28069d05cfb5550185973e4640e38d83cf12d5fa. 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/USDHM1520893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0a4307a59d576b745a8d71514e9fcc63877236a7c5fe55cae4f0e8a1890ec45. Chain 2 (Bitcoin): anchored in block 959109 (2026-07-22T07:21:40Z), 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/USDHM1520894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27fd2663a5d7832797dbee9abbe0440f5a592f4c0173572395d37f19c039d160. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T21:32:50Z), 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/USDHM1525676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cd5b5fdfb37e479c0f668b5c2f2d7eec2d5a6c3673907205b09ab5a5bbfa834. 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/USDHM1525677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bcc1d77650ae968b6d4ffb83b92b50fc632167c426f85c8565298a81dd558ab. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/USDHM1525678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c6293a143b6ac1a2f410f87c90deab47c64c0594e7fbd12bbe4e5b53a2f9692. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/USDHM1622678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bd281ac56053722e08ac0eba1448d3e384c7223eba384f00d6de02960e96ed0. 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/USDHM1704479.
28 Grandes Exitos Inolvidables Remixes Incluye Pistas
Generación Tropical, vol. 32 & 33 (Edición Especial)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1038c269bf90bf98b0d1ae1de68b47e4b1c81abff357f827f65ac127bbb302ab. 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/USDHM1816684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e90c973aa808bfd7221761fea094b213b7e5ba92990f7cac6263721b9db40a9. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-02T21:01:51Z), 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/USDHM2020918.
Mis Mejores Baladas Musica Salvadoreña, Vol. 24
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d09e4f28a4d978a086439749bdde9692b62ed41b12e7659b980064b6168f940. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/PEZM92002089.
Mis Mejores Baladas 2 Música Salvadoreña, Vol. 31
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcee01dc1e0c8ccc99d9f712c37d3407f021d4541af30d935c455248b3ac51d3. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-02T21:01:51Z), 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/USDHM2028889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x019124b52a0bf507bf0a68dd6524662f9d1db85ee8a8e159f9350a809d6c12c7. Chain 2 (Bitcoin): anchored in block 957676 (2026-07-12T08:20:25Z), 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/USDHM2028893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0cbc5de314dcc0b6367f35004ed96022e9f4785690e2fd5fa4ee895b4d5c2a3. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T05:15:47Z), 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/USDHM2408461.