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 0x9bf949e69269fd12056dfc274d9bb9ebc189dfc69ed31b6814e5e7962b46660a. 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/382c0a16-1a91-45dc-8b4d-bf36c190bcff.json and https://artists.proofprofile.net/proofs/artist/382c0a16-1a91-45dc-8b4d-bf36c190bcff.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 0x1fba412c19ecfbe6b6c712753e5a470043a528c9e3e5cd3f61002b927c3c6b4e. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZHZ42039131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe485b25bc44a768e6c8e468df06e6ce28856b4e20cd580a68105ff94b777b539. 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/QZHZ32071312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87a9e2e025365f8ac31cb7fc3b4929a4482f5c94e5f7bd093301dcc6fb656801. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZHZ32071314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22c96d75bcf2dab14ba85419e63d83de7d4e6136b15dc915a08922a8ef6b5ffe. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), 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/QZHZ32071315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe916ea4f8453bf7f109f6a33e6ce970235337f897330a63ae1273c64979d5b71. Chain 2 (Bitcoin): anchored in block 957546 (2026-07-11T09:35:53Z), 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/QZHZ32071319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9ba77574ba59f7cacaf758164afa0e1f97b0639e48fc28378446649d8184f0f. 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/QZHZ32069321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab44554a8b87c190cce3074dd35b1a5f732f710732d1a5e289c262092f59ce53. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/QZHZ32069322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x540c9c493bda4d78d501539613ffc049a9dfec6d3dc20f750bc0147c33be7977. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T23:05:09Z), 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/QZHZ32069323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cabd3db7ccda401cdbf3a6b961fc49a50ac8e6357b9a85f2167b3f1c6c68b80. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/QZHZ32069327.
Há Momentos Que as Palavras Não Resolvem
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc77e250f4aa73d1a2712cf3fb5df9b33bd1a514a54177ac97ae775a90026040e. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:03:30Z), 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/QZHZ52098721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5524894b93734eb160d4c141375bac876b8b6bba6c0f1b6f7f00f8b54e57122a. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/QZHZ52098730.