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 0x5f927cabd65c76d52f39de4e5cf7574a5b16d9e9a60309ef6a91c6cc41f7fc69. 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/cfb21203-9060-4d94-a63e-81b51e1e6568.json and https://artists.proofprofile.net/proofs/artist/cfb21203-9060-4d94-a63e-81b51e1e6568.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 0xb14faa26599dd880fe660b35a4cdbcfa4fa2eab9100817eb20843ab3d82b56ed. 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/QZNJX2375447.
El viento oficial_ Velito El Bufón x Pumeko__JKIN
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3edae1fbaf336422d4904df0a4faff888a47ff46ef292d87c36482251d6c946c. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T10:57:35Z), 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/US7VG2495164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c86f825d07cc180f97c7838e32f38b50aa06485ce52aaf632c727f4ffa66be6. 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/ES66E2400133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf60f0c79b083e47c923df253551deaa4dd88bb37e94dfdb9c454b1578dccea32. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/ES66E2400137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd27c57727ed2a607ab0af5d8f2d17fd10b64b794ca6de4727a2e7d6f96157222. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/ES66E2400138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e5c2b50add0bf5dfcf8b924a526f23988aee14fd7b553cc3dd7a17ef8546c32. 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/QZTAT2299000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd61bccfc04c18b7a9769149581d7b739a2bf784c24940a56353b00fc2a9b765b. 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/QZDA82303306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0be0891eaddb49c79e7791f2361c1cd3d868e689b1b76ab0beaa37331c277e4b. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:50:57Z), 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/ES66E2400143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85b7c733b428a3158fe049f3299ac6dd1864e7d5355589072e427151bde65fb0. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/ES66E2400161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39072da04778f968a25df56c1057c9c524d989c402480725a4882037260c2847. 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/ES66E2400162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeea37d4e767f268e070cb6221f181a00da95af8f28083822909dbdcc060425b1. 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/ES66E2400163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x962bda448a489fd2a76def6b99cadfe965f974fae0f8faedf6c619c8c99a2303. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZNWY2227489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcf56be569e9a7333caa2010e12d0e48639d5c7921f241af9dd5c29e46f032e6. 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/GXF9Q2417195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf319db4ef9267739559ca3188c79e7ba7343f3abab71a274a2db55d20a796d1. 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/ES66E2400145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6326a0d935478add1ab46aee960244d39497543e79f77f2b5022e8d4634d56ee. 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/QZNWY2227495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2c2f881eb15ffc64dfe35608bb890e19e4ecea2345aa362f476a45ec646a080. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T13:23:23Z), 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/USLZJ2110375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc4c5b4440fee33650e02f19825069478712cb3f9c803eeb5b19ca0ee6a6c80c. 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/ES66E2400153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21a7568fb77a55d85e55e7656cfe8be26db9d1dea181bee61e075bf774fabbd1. 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/ES66E2400154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6866b58d9d079a6a45a1341652e08b9afca9a6c930b67bfd950051522e14571a. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/ES66E2400155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7591657cefa8332520f4486cdad32181cd267443b7643081878ec7f87ef27b6e. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/ES66E2400156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef562fc30f3a0a9da714ee0953ab5c99a1e12418979907f009f50514318ab4b4. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/ES66E2500242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0850dc06d69b3996d6540698afa81072836dc1ccb06bb88adbb2808785ec6f5. 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/QZES92314586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x266530709fa7c3709bf8351e4d8405685f31faf33367f1324bfdabfb8a56dec7. 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/QZTAW2268834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x396e34e1be4bd09afbcc4969a5e9fd7bda3d297ce34133814ed9477afd6c5d14. 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/US7VG2553042.