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 0xbc00afbf2bda03ed926c79deab6297364b2055e1f0f438378ebd557dd087e78d. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f7c25372-dc46-4861-b273-7f7d65358806.json and https://artists.proofprofile.net/proofs/artist/f7c25372-dc46-4861-b273-7f7d65358806.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 0x33d4478e76897d011a8a0da9710c5319cb1b3dc7d545a120f0da9fe744bdaee3. Chain 2 (Bitcoin): anchored in block 957745 (2026-07-12T19:20:20Z), 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/QM6P41739413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58546fdc597b3769e07733b3e2eb7ca93a56f4c0022283f332df9667f935d647. 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/QM6P41739414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb94484c2ed0392fc2fe760bb8212985ddeb931b7e79b23740c4fb5de9906a838. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T02:05:06Z), 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/QM6P41739415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b05e632f381b9b072ff4aad07f82a428d4f97e0360a9534fbbc79c62e5d0aaf. 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/QM6P41739416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1591aa45371ceae59369550b443f9b4b6c863b64d332a06b345afb9ae18b88c9. Chain 2 (Bitcoin): anchored in block 959065 (2026-07-22T00:43:43Z), 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/QM6P41739417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce221e67cfecc5d67e67aa650bcb008f6ade0a17721328037b2dbbe5a658897f. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-21T23:41:40Z), 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/QM6P41739420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ac04e37ba1669526f520a9a1a156ea4ec7cc19a1a157428faf7d68da9f37bd5. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QM6P41739422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d90edce69bc94cb3124de76dd37c1772f1df3656ac4a6a89a9512571aaaf0f8. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-17T00:03:21Z), 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/QM6P41739423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30dc8e974308ecc210812f0c56b1fa34bd17c0f328a3b214a4152702126025ec. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T10:54:04Z), 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/QM6P41739424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a6462927619df87fe564284c743227f4f88fd3b3441be362a29f3d2609f55b6. 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/QM7281981977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f5272dec4caa0448c72465b11a6a1b77b8693f4e1d0b4039a511bd731a4c8e5. Chain 2 (Bitcoin): anchored in block 959013 (2026-07-21T16:28:21Z), 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/QM7281981978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f6296e66d4e20d86f167b293bcecdedcd62b9ab854ecd00a7c07036a5b0c985. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/QM7281981979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9ffa82a23eb8dc36fb8381e4935b87ad767c38691ae3d63724076112f83becd. 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/QM7281981983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88ea5a9abcfd51c9ad246fc34a4c38754869bea55c96bbefa278661aef810568. 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/QM7281981984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe44f73302c8c04c848ef6181b8ed2451807251916f7e6b7e40a956da241a122. 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/QMBZ92091048.
Mix 23 : La Chupilca / La Secretaria / La Mirada / El Mero Mero / La Vecinita / Sureñita / Te Amaré / La Paliza / Te Voy a Enamorar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63b07e816fccabb02451a002f9782a84ed6ba14cc26465ffcef3d461a14cbddc. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T06:27:23Z), 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/USL4Q2312273.
Mix 24: Mi Flaquita / Loco / La Fiesta de Chile
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17be9deeac63bedae880012353bf1afd2a25f03844f9ee3dfff435860a8f214c. 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/USHM92401226.