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 0xc04cbd35c2fb070e3df89a8efc2dcf96c3d1fedca932c89937a1a6a655539955. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ac21d759-3f37-41f9-8f20-1d2b2e517515.json and https://artists.proofprofile.net/proofs/artist/ac21d759-3f37-41f9-8f20-1d2b2e517515.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 0x154706ed33d2fb9a5d03a809db3989043530ac1493aedd7717c00a726874e222. Chain 2 (Bitcoin): anchored in block 958218 (2026-07-16T00:33:33Z), 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/BRRGE8900411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32b3893a691236350f4e2316b87527b7c3e376b17be6b3b5ed52a04765504fb6. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/BRRGE8900412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93ecb5c2d3451753f06eaa99fda11f01ea22567d2f23ecd4f492813365c47ed7. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T12:29:50Z), 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/BRRGE8900415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd306922544dbf643e004b507a379da0bf324e5297706e54262707a8acda3b162. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/BRRGE8900417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53268c4b701290011678a1d61d2bcaaaf7de13e5e6a2ba2c56b2dd07e07b860c. 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/BRRGE8900419.
Pot-Pourri: Estúpido Cupido / Lacinhos Cor de Rosa / Banho de Lua
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dd4bc340337a642122001c54dc4b237de9703c8a2328694c46156a4b853b2ea. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/BRRGE8900420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3ea2d866eb7eb6c9af9dc6fbe0dca20faa72365eda21fa752d5ed1220daea35. 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/BRRGE8900421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf211796bc951ce9acc65a2c2098af329e9d3f8a6a5ae5b8e8e3dd00e1916ec35. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/BRRGE9100764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef6b43e4ea3e5d7f25da1b60221ba64c0515482b7a688265afe99b9681583332. 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/BRRGE9100765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f6227ef42d12acefcf55b764b97f76f1762786d670318bc5ea2638350d6b6ea. 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/BRRGE9100768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddcbf0a277e44c9f506f10f8c3f96ef4ab3f5412402cf4fd7e520fe329907228. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/BRRGE9100771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf23846488431bdc6458b83d362d700a6768de45f10d843a36d83f2529364fe21. 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/BRRGE9100772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac908d2d15f51b37fdf0ae2b8a4a901a1b2346d1f33cf4943f40d68a2452048c. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/BRSGL9500151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcda5ecfce45a4116d3fc4924d9f2ec874c7486ab7c88543bb9a5fb909ab5c3df. 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/BRSGL9500152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbb814e44f6ac355b9d3b8e1922e775451035256de5819b9cb270a81d72264c9. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T11:31:57Z), 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/BRSGL9700076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe015a484ce20769aabb144460c6d97af0af4d43fb634a49d1f275ae070f05628. 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/BRSGL9700077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1e986a599ab1d65e6a07164b1e0189a29924ae1900eb3a15cb780942c1c342b. 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/BRSGL9700081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5cbb410b08fe90ab6b749d1e0357bb9ff9b3d307d3b858af678f31493a518c4. 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/BC1GL2451162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x508a4f459a02229f762c9f283bd0619f4d45440d65f2e0cb0327a6abf87764b8. 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/BRRGE1508183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa855ccbba6f2a736e7430e028a15619281600c040b3d35a289d2dd1d00164f2a. 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/BRRGE1508184.