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 0x88c607a209ddf24fa6e663c7715139a425bfcb09e94a804025924050d327ce02. 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/20ddae5a-bd78-4641-a48b-8f75cd6196de.json and https://artists.proofprofile.net/proofs/artist/20ddae5a-bd78-4641-a48b-8f75cd6196de.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Mega Funk Subindo e Descendo (DJ Ryder Remix)
MEGA FUNK (MARIA MARIAH) [DJ Ryder Remix]
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 0x9fddde1a51eda6885acaeb984ccd2cd3ab0c849c7d0811ad6cfaa724ec8d80ff. 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/QZ5AB2465057.
MEGA FUNK LEMBRA DAQUELE CARA (DJ Ryder Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5483fc5a69da7a9f89a553eb6c19e6df8771dadc6166d7412b712a357fa7a915. Chain 2 (Bitcoin): anchored in block 956859 (2026-07-06T01:42:12Z), 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/QZWDW2470555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5483fc5a69da7a9f89a553eb6c19e6df8771dadc6166d7412b712a357fa7a915. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QZWDW2470555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba6e2c53b24d65969f345aa63942bd8cd36bfd94aa0ce9885072aa4ac95af95e. 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/BXR5H2400036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c87c08fc8aa35062b16b7397bf718bbaa04af229b0ef1166ae8e102c5288a87. 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/QT5M22534187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x311a51ff874a3a1cf24d9fe8f1aa717049dad64ce4d6c96af11baf0136ab6996. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZYFZ2425385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6027ac3cc0d8dbaab7ce009beb8a176604b91aadfb1a494421d7a678dd0099d2. 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/QZWDW2551167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4aacc78c94f64cc20ce9b155444c190b6d05d13d629ed0204b5d8a017f4d784. 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/BKAVO2000351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee39e11cd87a7e743e2ad2144a38a2f7945fa3d2778ab1b49860a0b85a009a87. 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/SGW502557015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68b6d9b3d994d8a7722242b8563b29607ed3f1f1290bcf0ef0ae8496b7c0649b. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/SGW502566440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x166f5e49991676226f5d7d841154a200031c901f5a14e231255cc1eb6db52611. 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/QZWDW2543971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x147512e5a0a2a0d40b3a8d2602fc3aa16d2fb9a98f7e9b5aaf2ed9943b02d935. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/BXR5H2500004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35e17e2ad708a107b5cee70914c1acda2babd61ecd51a266d069922cd3716c25. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/AEA3A2125170.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch