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 0x915608bc51d0f5c8ce506ba74e0ff43938f90644560ddb957e541cc1466ee117. 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/37f498d0-81a1-4d79-960d-2051e5c01558.json and https://artists.proofprofile.net/proofs/artist/37f498d0-81a1-4d79-960d-2051e5c01558.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 0x070fc4d2282130bc82fd2d58e41866964db3762a5ab6fb2d5e749226a3c81129. 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/SE4RG2402326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83a74db3bc422be4e9e2ade03248554d0d684bfd361cf73ddb38009e8213db1e. 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/SE4RG2307168.
Shine Your Light (Free Your Mind Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9db9057fce40f8d3990c3f83d60a2ceabc37a0b8b884eb975ddb2f4a3cdcfb31. 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/SE4RG2300745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37b5e5ece27a48d658503277d8592c8852897fa5315cd2f089797b199dbac16b. 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/SE6RB2204421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97f2ccc0bc0eefd302a37a55c30f114dcf3cb49f12c488fd2756c79f5b6a7322. 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/SE6RB2133601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6929c18430454e47c2f499abb5c52ffab7a6eb3bd8213e9fc10987b4fc627966. 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/SE4RG2114801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff0966eab4fe854a237f7ecc4e1d9468a6fd1aa6c07f5da04ad58ff47eb1e16d. Chain 2 (Bitcoin): anchored in block 960125 (2026-07-29T15:38:18Z), 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/SE4RG2114802.
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 0x4b1db40dcc18d9106918276c75f04d070bc69b0e1aae9ccfd4bace153656c7a7. 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/SE6RB2038701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a71df35063fb66fdb43ab007a574d1e62dfd3dfab8d2894d3676e7a8d15fbfa. 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/SE6RB2038702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef89ec5f9d76c42f9aa7e621e3f69a1bf1cdbb3d145b52fc4d00c977bc9e4087. 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/SE6RB2038703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2d10b7a0a64b590f45781677eea33e152c7eef9c1b5275193308adf09b67dee. Chain 2 (Bitcoin): anchored in block 960306 (2026-07-30T20:23:53Z), 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/SE6RB2038704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac86b458944e128626f1f0271e587e3f0506accd87b6b42df3a225af3f988c18. 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/SE6RB2001201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc26a6207c400171b2c0857bab353709815f0b78d5d3e93d745283f84cae572ba. 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/SE6RB2001203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72f5e7745ce5eebcee5390145d87f9757b1cbb7a8cf061468ce59a1fc44948e9. 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/SE6RB2001204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3015c05f962d8c15710c882a7d4fa88e0ab8073f115645cd15e370f9a1ecd2a5. Chain 2 (Bitcoin): anchored in block 960199 (2026-07-30T02:30:29Z), 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/SE6RB2001202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb6f1420d5297a0708d27930f6452cc6b1fb15565faa2a1805ba0b65cc88d178. 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/SE4RG2061102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f0ac461673dee3cf38cfa2c0485f3112446179b95418c623f3329c47c536c00. 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/SE4RG2061103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e27d30dec09f39807623275059441a9ec696b463644ae5abd3d5d474d3f4cf4. 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/SE4RG2061104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc59e4c263bbe39826d4abf198085d19cffcf459fed14fd3aaa18f3cc8806346. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/SE4RG2061101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6775900ebeffa572a35b95f7e31dfe3ad9cdc9a34a89ed0444b1253ec9e4fd66. 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/SE4RG2052201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2e3ea4f27ed57edf47827125b83a585dbb813522fc09b13582b0abf2ab9a319. 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/SE4RG2052202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6cf94698847d39ff5607ee700e7a714d2eeb821f80a511961c14723e2a8e70d. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SE4RG2052203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2deae8bf7e2538c7b784bb9dec524d8ccd31020e75d6acd92d494631d46d80c0. 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/SE4RG2052204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e0cb52d292d6b64b0548b104f587a62f49a8886343976fbe0fab1ebe901d06c. 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/SE4RG2044101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1922a8bf6b29d7de91057126f9f23b441da7ec6a170b4317d4b336e5479e4c4. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/SE4RG2044102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b95ed1ee100b192bfe1bfd0b68ac170b1a1bb3b39f8c796d5037de508a1ae1b. 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/SE4RG2044103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee40ca4915b4888637c9cb2c898f082b2999c2a0ae0589f38b9979fa97708067. 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/SE4RG2044104.