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 0x6b3c850bdb89a42c9e2ff2b1c5a3971679913cd3fb79dc7fc9bf2acbdd4ad3af. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e833e055-d1f4-444e-b19b-eebf0c1d1db7.json and https://artists.proofprofile.net/proofs/artist/e833e055-d1f4-444e-b19b-eebf0c1d1db7.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 0x20c33bb253c8ba167fab3865e079631367f049ace51f8389b41a71d7b7548eec. 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/QMBZ92388433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0343864bd5d66a42ff2c3b62da06fafd200985e2c4ae4490fef09ce19ea28cd. 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/QM4TX2444265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe41882f5f00644d494ddbd2080a469f79b99e725d5448a8bd2fbc8827c7cd1f. 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/QM6P42440087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb3f047e963606c49c90349de266ebc8456e6c14e52e1fc37d93bfb53fac69b4. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/QM6P42440088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93ee17e5901bf1fd14cbe9677b8c0618b7346e03df45b871e2e5187ff6ae56ea. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/QM6MZ2450797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20c33bb253c8ba167fab3865e079631367f049ace51f8389b41a71d7b7548eec. 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/QMBZ92388433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd918a4139f1409563d5a78c84b1e64769b11e5f35b85b60beea25ebe444bc53b. 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/QM6P42440092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0343864bd5d66a42ff2c3b62da06fafd200985e2c4ae4490fef09ce19ea28cd. 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/QM4TX2444265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6519c5f60a542aaac4f6637fbdf80dff7d580d0d2b28cca47821dbc67360e17. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/QM6P42440095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38c7e54a3a3141b302ab641da69f267933305f1eb30d25a02590eed5b736784e. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-22T02:20:55Z), 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/QM6P42440096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bc289a7aad305d14c2a66fa683835e53588b99a9215bde6f4eb59ada3d3c307. Chain 2 (Bitcoin): anchored in block 959096 (2026-07-22T06:39:52Z), 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/QM6P42440099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c7efdb6115f75802bc06795bf04472c993002817bd74bec761800372ec7db76. 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/QM6P42440085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdbcc1f806be3e256361982d5ec4081e9e552cc1e8d249a3532ddef5c25e3eb8. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T15:44:55Z), 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/QMFME2402687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea1186e7235ec5373459375cf8d5031dceece2bcbb5d2be7b6365c1679f5aa0e. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T15:09:41Z), 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/QMFME2402688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb3f047e963606c49c90349de266ebc8456e6c14e52e1fc37d93bfb53fac69b4. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T10:04:40Z), 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/QM6P42440088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8b585379c69f1632a55ba9b3a2f95536229d47f06eeb8d7297f3a9042f2a187. 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/QMFME2466228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29efe20739a70e3a74cccb0948cdee73deb09441bc5959b22e35f9f5de94166c. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/QM7282547626.
Love Birds (feat. Devin Malik & Lance Skiiiwalker)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1f916cf6621542feb69ad78aa920a64770b7c2ce82dad7846aa9cc0e3c87af9. 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/USUM72401071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb06ee7463deb578387b53e979fe69b217fe05ab70ae14b7ce4d5dc5fb428021. 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/USUM72401084.