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 0xa752df19a0e8a5f8bb3f1b72d8c9089eaa9a99bafbce39de4b72fcc6f96d1f65. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/82d00099-dd0b-442a-b683-30dfdef9b2b6.json and https://artists.proofprofile.net/proofs/artist/82d00099-dd0b-442a-b683-30dfdef9b2b6.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 0x4e4a16bad8aa1aaa97740058727b5618272cb33bbf3e0da6265df56e44090318. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/RUA1H1739606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd54e5814c5b5e5c442eb88f164b8f2a634d492d8557e9a675bd33e0533415398. 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/RUA1H1739598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a5b26f883587bd874b5358f2e6cbc4866d83b33a214a071cf0c98ce148c2149. 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/RUA1H1739601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7522f049b617bda7703d4572f77a5ce927f005824e855cb3a7aed4b7407c362f. Chain 2 (Bitcoin): anchored in block 958054 (2026-07-14T19:33:24Z), 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/AEA0Q1706084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba4f333d1e073e778a213850b7fc5a1b4a89dea671e5ba362dbc9c2fa35af1d6. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), 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/AEA0Q1706952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4d21f070c2c0c913316dca0433cb46634ec4891bae34d1105d04942795b5a5d. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:39:24Z), 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/AEA0Q1706961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03602d300cb808103d509cd549f84f4e2823e5cac4db0901f302431bcd9918eb. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/AEA0Q1706953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5369b664a17f8186b009e408514153cf9af79fe715eea5e63e25afc1d6acf9b. Chain 2 (Bitcoin): anchored in block 958870 (2026-07-20T13:47:45Z), 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/AEA0Q1706959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a5a7d6deca5f21b64224a62d11022734e5855c724b03b1b903994dedfcbbe0e. 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/AEA0Q1809389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3150421b7fb30fa47b3a58307d2d5d1c14fe5c8b11605c6dc731670bc08a35fb. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T12:59:53Z), 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/AEA0Q1840644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71e071d04bedf919a48ce8a60a70d4568c963a1e643eab6b96f360edeea5737e. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/AEA0Q1840646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x812189bbe61bf04e6c25ba464d65d57217868f04427ce513e97c61bbabe0eed6. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/AEA0Q1840647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd57e37cb20566cd01933db87210af850dbd1b2bf7e26429b0f49e7f058ad0714. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/AEA0Q1840649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fe7079fbe34b764e6c53ed5fa6951926eb1ee7f8d9de53cfa0402f488999a5b. 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/AEA0Q1840650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4373e6007b7f66e3e85ed8405a7d3614915a21d40ba9f995c8d7e905033e7d52. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QM6N21904112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9608544a66192d5bc8bf388c19cc767619a2149f4956f8846584aff1d4e64050. 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/QM4TX2028234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf07bb481c86988f01d087cd17758e53776d5a1b980769f61c650fca67f780bc0. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QM4TX2028238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbd15f61680d93e49a2793faa75ecfb3ecd92699d6c09b1c1c7c1b1c73011380. 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/QMFMF2023612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56b6e883bdff7368f92b70090d4c38a2c64128ab826ae11c0791493f59da765d. 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/QMDA62147741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4732300cb38275c59a6b4d8677ae090ffb5c63584f2fb791709c5d2393c35c19. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/QM4TW2227441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc3097375be072c34e182ff2ade59d2f8b5bf540b54bb15d3c137aa8df6e7d3d. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:16:03Z), 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/QM4TW2321553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2213c634c6587a3ed5e04ff0fa986690eaaa05139f6daa456d9ece750482bc81. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/DGA0H2373641.
Colder Than She (Teaching in Trips Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fc1f9271cd378fac70451720be2d1136083a20be8c60afd66bd59ebc8a7f554. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/DGA0P2358747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x623e8b1fc06c6500a340653a4ec884f00eb2ac352acb2bfb18699ca7b266e679. Chain 2 (Bitcoin): anchored in block 958644 (2026-07-19T02:21:25Z), 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/FR10S2483394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6d0cd0fbba8e78358ee459b1a1e8f89f9c6f732a2b15d1e0a1cd2a64b4cb2f1. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/FR96X2499784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe22d43509665c120ddf64274a0cd325aaa3e3411006b646fa06284f02fe3ebe5. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/FR96X2499785.