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 0x4e0ce85f4a911c543a45cca6ac1fa4c4c83b300b3757e3ea342fd534c517b1b3. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/71fd7b25-a6ba-4be7-9ae9-95e82a4e067e.json and https://artists.proofprofile.net/proofs/artist/71fd7b25-a6ba-4be7-9ae9-95e82a4e067e.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 0x4f5aabfd71c963b08ebe696f59e485fe71e9f97b6acb92bb3e815e2f36706298. 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/QM6N22328534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c8c160a71013bb27a34311c9ff9048866b75295cc73fa691e81eaecca784514. 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/ESA012252692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd813eb30824a0bbfbfd5cb1d0997213a12d704a3be2ff3a17f0f2610f48ecfca. 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/ESA012212268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e0dbda4a223f2df659d54955c8aa68f18c8ccbf5dab6eb3ed88e488d8409774. 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/ESA092205757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10a62cac4a3b2a9557bfcc0c1673b3b9b30cacfab074d0d232f271925b4205f4. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ES71G2150060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc917ac8c190a3991c5da55df8e9f19fac0c51bf7cd51e0f1f08583b7b970c453. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ESA011543281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1666a3c6a569bcd115a252e90a4591c39d46027ba3c83dc0238d49073019dfa2. 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/ESA011685587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff1447848ed50933445b3e67cd674a60c5bbf4f4d941586ca13dcd3b2afb4f5d. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ESA011667901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92e362f805286aff5e57913c5cf0c5efcebb745e885f2ad73a633f6c10dc8192. 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/ESA011657542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8cc9788cb80e2c4c8e3a9d121636671e6c27b5069b7f6d4e82e751cada7aa65. 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/QZFZ22101370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98f1d54ad272ec99ca9f595f73cf7bf067b83db9dfca78dec40fa0b916cfbf56. 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/ESA011864533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb764717d3f1fd270d67f0fbf08f7b99b41cea0d3e0bee5800495bb737fd4e44. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ESA011860594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd472d5ee855c4b570a27544935ae57733b35fafbda8473728e7311b8794b93c. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/ESA012215162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdae54aa41cc3658c6485d8f2f83fb9892cf4da196c5967bcf5fed1b702ebcdd8. 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/QM7282424933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffa43caa0043752cd59a967d2f167bd440f4abcf63bf8737f8a646eb5b78860d. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QMFME2457559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6e3436085bbff4b4b7a77d7ccd039086c86a5e6947251efcb0a8f4d0a3a965f. 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/QMDA72413064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d027573c93001d7ce4acb9a4fabad29d9dc06a70461d830d42524cdcfa58bce. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QM6P42457873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86e346aea0fbb59f47bf30e159db195438c2e8067b2826d263b17d9c99e5488a. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QMBZ92394002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf46710cf43400e0b34014b3fbea5c1d9a8767eb828e3939ee1e3e5240d1d9156. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QMBZ92313358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b9e21124f94d2cdde5b42a27769f98ce9ae11272e9dccf90da2fb226e1e9040. 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/QM7282365596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c18b8562755a33ee2f63eeecc287424cb0e4b8d57378ec1e1ecdbe1f29ecc24. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ESA092309515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23c419fbd24412337d4749c052fe24f930d76efe72b67e007a6b038fd945e293. 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/ESA092236202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77b30218a417e946e3850159fe2df1bb13b9c36f23f2fd2b2b48b1b623286a01. 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/ESA092225909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9eebcc40a77c4175f080783e4a05fed11e2ea1329cdf9e9eb09fd29452567fa3. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/ESA092220528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7acae6acb7e620bd801ee59252ebbd4427a82333b98548a515ab2abc72f8126. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/ESA092207704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x529271c872dfb97f8efad2a374307c48e5a440543944515bad557a365806df1b. 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/ESA092204076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cde721e306b5826b6d8cacbd5fc3872029e9ca654da6014183c4738fb1963af. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ESA092200124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1e21fe5d339ca2ba9f87180dbf8a6af57c02e5f2d4cf602cc6a9db6f80144cd. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ESA012287465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dd461dbf1c1070e35a35f0eafecc60ed8274dcc97905515bc6ee1b50f9e6a18. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/ESA012210143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84ddad99b53e3b0ba06e579925f2a2d411112977caea7f92125c899e8695947b. 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/ESA011560333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x200aa22250a43a07c055578513ac0ea11737ca6598ef1573849f38e01df39534. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ESA012180781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb71565b6f192b9f6dafa351d87bd1f3fa87e9fcb5242f9e9ad72a7e3e49bd463. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ESA012067431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe94d67c63d74940b57c66e74c85937536c9b40904d6bd1fe9a39c16d75e26e5c. 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/QMDA62100112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76c08b6aa515cd0dc5ed5c8aa8e0519478333b291ef713dbbfe29c72428dc0a9. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QM6MZ2589419.
Siri (feat. Jthyago, Anthony, Jhaylar, La Cuestion, Siskuflow & Brahms)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d92e75cc013c5f5093e8ba97c563a6b1b649c8aa49065ba4c1bffd5fe2927bf. 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/BK4DA2313470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38ac13258279e6fdde5825849315cb38bb36dcc72c21d42e8cdebcdf851243e5. 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/QMBZ92178365.