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 0x6689214ea1915a5c4b2639a28886b7359216c23c9fa7361797750d4fe9d67ae1. 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/121c2d46-96d9-4ae8-a4d9-34b5516c1a8a.json and https://artists.proofprofile.net/proofs/artist/121c2d46-96d9-4ae8-a4d9-34b5516c1a8a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Passeando de Pago Em Pago: Gaúcho Seresteiro
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 0x7f60607b599bc75458f1b84e74bf2e027b12daeb11b438838d80eab0c7672f13. 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/BRJPA2108001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe641025b559bdcb923e6323592654a7494a10e3d1bbe382a198a7dfd356319ff. 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/BRJPA2108003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73c4f898d60ef5155188bd70aaf347f71a5e35722f9dfb8ed06daae657810927. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/BRJPA2108068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b321030d4f3dd9936c92a137cb18de4a78fb12345b8e3e5b4b0fb7d0e0519f9. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/BRJPA2108048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fc8047ec6a25b068a684f371609c7284ab2b3cb580bcc6d1b11f6e67addebac. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/BRJPA2108013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d0b9f9216e17727038814a03501379e6e369b0ffcbf5fab14f916a47ff20407. 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/BRJPA2108015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e2ea129befe03ff86a9cb1f80d7e6938fddea749db1c73948c0e1cff3a147d7. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/BRJPA2108019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe09e1a5f417a9bfaa1ca7a460ba245c83dfc73c58cadf87c409dfd5e3f858def. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T19:55:47Z), 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/BRJPA2108020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4dd4d4229e6c1abdfc8697134f3ee2dd83f03903a7e2db7cb1c71055ee5fde4. 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/BRJPA2108021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x075866df4f717def515a43c0e501d0af3aaffa1de4a2b14227873838ecad8bbb. 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/BRJPA2108025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b2d8499694059c328edf2d16276ea38cb47261da709f197249f080d63bb5e7b. Chain 2 (Bitcoin): anchored in block 957565 (2026-07-11T12:18:39Z), 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/BRJPA2108028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf6ee591656e5943924c954598ebccc521d10add792d78c1450ad36f5921580c. 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/BRJPA2108029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x719e35074d55304fd3b0ffc6f61803e2b16e14c8be52152ef4e201e64f2b35b1. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/BRJPA2108030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a9091d7192d3c8127723573cc6c4c8d60e2414a82d97b948e52a4d9db264741. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/BREMI6700039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5418d41f0b8158ab6eb47cff15a5598c16bfd3384527d7a6c7b5fd2a59d639d. 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/BREMI6700334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13bdd07ff9de186d1d04d24b9c11ba76b21d075727bc1680a460757d1425568f. 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/BREMI7300102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84802755a79eefb44ad74a6cf2a21cf5aa8eda3cc52fadf8f11eb1857f92e731. 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/BREMI6700040.