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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1403a40ff663740eeeef3be2c7112711318601f2f57dcb5383481eddb10fd821. Chain 2 (Bitcoin): anchored in block 953596 (2026-06-14T06:21:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/097c4c2e-a642-406f-9ec3-285722cae7bf.json and https://artists.proofprofile.net/proofs/artist/097c4c2e-a642-406f-9ec3-285722cae7bf.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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd03b90633c5fa6929dd5045b7ff668a4c3927032c844680a8da3528ae207f09c. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/BR4KB1600031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb393c3f14bca75d525c60c54902b1c0f53af2f35f31c8f06d94e0660366e7ae. 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/BR4KB1600030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b08d531e4ecdb83e66c4e92f5712a89be50a4800e98458d1304804da27e27f0. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/BR4KB1600029.
O Mundo É Maior Que Teu Quarto - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x474c563759763843c4ed1bd812e213551ce1199756afe4f5c8350d58721eec4f. 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/BR4KB1600018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae112fef800bf0f2625f51405b271351a651ed34e425b1c151c7402bab19b79a. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/BR4KB1600022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0657e277b4a50805683769a6a19643847d3a0403ecef38b4c82b25c7a6064c37. 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/BRJGB0600012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc97eb921852a97c834693978a689ef4a4b0f836727cea9929a79e01bd4d8e59f. 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/BRJGB0600013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00a8b849d3521176cd05d7da08edeef8da33ffe4164f1156aee3b775e0414e16. 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/BRJGB0600020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95e02425a203aeac314af56ea4c0731dc82947aae8515416b67701754387af66. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/BRSUL1700020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x238a970aa662b83686d5a131f17f797618a01be696864a8c97aa21f1c29b78c1. 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/BRSUL1700022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52693c56235b1feeb10d7145465f9f34f9c286b14d9ebd58d593001a68278bd4. 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/BRSUL1700024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x290a7dc48849d52afc2c31201745a792dd3e529313eb6c3802740f07275c8372. 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/BRSUL1700023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93d32705a1a3e18cbc91d314770457cce416470babe18c839c0c7f718a4f3067. 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/BRSUL1700025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca655b99fb89a27e2df71707a3779b4b19a77811e658d296f813335d2a1a41f4. 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/BRSUL1700027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f1efeca4f5edd314a8b032eb4cd83b232b25eb9c75346a0c17ebb30bbef5bac. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/US7VG1795291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16a263c62c8d48cd08930d5b3d5709fbe5472cf36a08cf0dc096ab6bec72ca4c. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/US7VG1795292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9d239ff77606448272022a6cf46863eba6e0212dc1b59a505a5c907cfc85808. 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/US7VG1795293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52be0faccf35e9617a294fedd863e7c813f8795738676c96358b1d1599bf8e85. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/US7VG1795294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x714deea78b9a177f6d27b2b4bb20b908552a3a0eb181bd757a02f8a378ad7787. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), 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/US7VG1795295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67b97e6e708d10d615dd4d2a1033d0c3c20b9266c1247f174a42baab30fb7393. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/US7VG1795296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb27f4aa7445446b0d8011a8af40f1b372c2761253383ed6c9d452872ce9e3a9e. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/US7VG1795297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd05d60dcf7c93b8b7a60ba443fead5992d94eed1211381175da8143402b5eaa0. 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/US7VG1795298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0ace98ac5f29ac1f651941fdd187d5bb8dd84a344cc494ff999054abe225b29. 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/US7VG1795299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5c8daab8a623d8faac878c8a15b3b6b39cd2e16ba65d2ff3282dc848cbf7f5f. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/US7VG1795300.