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 0xb830d754fb01a5910cfb1dce853b10c2ee0081d1fd07a105a3ec4769bc19b2b2. Chain 2 (Bitcoin): anchored in block 953978 (2026-06-16T17:11:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2c082013-baa8-41b5-a879-acd76caa09ae.json and https://artists.proofprofile.net/proofs/artist/2c082013-baa8-41b5-a879-acd76caa09ae.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Juliana Sinimbú no Estúdio Showlivre (Ao Vivo)
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 0xe5a3c86592574019387f9ea3b8c1cc59ebf2ca5a9fe97592dddc4bc7ad61ab92. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/BRW5V1700002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea9a380ad9d7605ee5a244ac8af4039cb826d35529da154bda074f82f5e33866. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/BRW5V1700004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd19aefe3ecda0ced859f4489d414e301a36402a037a3eaf2d88ad3eb2b9602f. 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/QZ5AB2465224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa823a1d3501db66c45a40df6343cd0f92859e8cb5fdbb942ea0c53a265b4fad6. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/BRW5V1900024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8f0bfc3edccb1b97ee658fb9e2ca501194ddcfe833836cd23b71ace0eb429c3. 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/SEYOK1710398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d57ac59d0270520bb7ce85b934f99cb827b426c8f625002cf3434000f882b06. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/SEYOK1710399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b215b61970880ff6f8963aaa831e418859c5dffa7b3fc6bc128cc5673422ad7. 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/SEYOK1710401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3cc51317e92d0c0b6038e645b50417c989ff2c8f845151cbf098cb06707c764. 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/SEYOK1710402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66fa8ab7f5ca9486c082c288ddc28d8f446c9530cdc7b8944e5e3367dbf5c5d0. 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/SEYOK1710403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c770e83359d91768ac2da1cf4a420c055369fc4e16a74cf008f9140858a8554. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/SEYOK1710404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf012d2f905df41407c0cedd5b79cecb3c09a1d626354e584ea00e47d41c601a2. 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/SEYOK1710406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61b33ec6ef3bfbc965321d8bb4de63449a94e05420353c0be50d04cb51fb156d. 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/SEYOK1710409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a27622826fa35d78786fb5c18dbf1625951db3314b549e2bb82d54868bad73f. 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/SEYOK1710411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bf4599c090415548dbe8fc40a137f32c7b6995c303b85f4b7be21cab25c7409. 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/BCA5G2000014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26b8e690b49ed8cfe0d3fbe379cbf046f9f4aa95e8a97135f947c71c4e1cb10b. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/BCA5G2000015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5e855904110499b6b043639d5130df626075b343dd91aa4565ef375c38a7c07. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/BCA5G2000018.