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 0x16b1f19b613eb285a279fe2fe41d13b000bfb35e95f5567f415d7e3eef4676ab. 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/82144b19-be0e-45d6-9001-1fc92e0185c4.json and https://artists.proofprofile.net/proofs/artist/82144b19-be0e-45d6-9001-1fc92e0185c4.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 0xd2528a133ab6f14d339797a075c41c984f6e58d38c134a7e074616d04c306050. Chain 2 (Bitcoin): anchored in block 958407 (2026-07-17T12:08:48Z), 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/TCAES2016909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5223c8b8d7d2802ce77ab82985c2e37278a26703d463385d67592f6392771fc. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/UKXN21969355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54b3a0d0a42c7976c1c71295dc82f8626f461aa6641525a4f412c48ed9872557. 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/GBARL2100283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc75c1c573320bfe5ffa826d4624384712e48b2d8e75fbb06ac31b3a6b99284d. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/GBARL2100573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbde1a98db1d696138b515e3d1ccf719b120f422acfcc3ee98c0f8eae2d238ec6. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/GX3Q92197447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe66dd87d65542494802d340a3bcdec781a3ebdd28412d46924545b3206cc53e2. 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/GBX722200211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf18a3fb1eb7ca15c500eeb810c796b58bc31fb7bc3afed34a0f4856210a2a7a4. 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/GBX722200553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x368cb0c1c9e23b84840c61424555b0491457def89ec51c034b8f0f2c09ed6c70. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T08:56:51Z), 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/GBX722200739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe32ec65e0563fb09a5021cae0f25d8453234fc907e3aca2cc78a17b96c24d3ef. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/GBX722300023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48d7685826ca80aa380a43e3cbc213b9958d5156197fed8698140b843d20f7d1. 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/GBX722300025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17263d9ac571e5e2c3147cfc8149d8461c26033a1159a2a81ebe93b9a14f34d1. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/QMFMF2392673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x624c90e95336e3ead4282800b9d999f89b6707e5dba1fc6c12dab23a6cc55513. 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/QMFMF2392834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98a1ea5166862365280c6fef7b161f4abdc97cc107f7331602853cb4c4c289bb. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T19:48:03Z), 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/QMFMF2353575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b122f4359570f9057ab4a3dc5cc7831fae13f99e77326c298d7ce5f6dd3694e. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T18:54:07Z), 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/QMFMF2353576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1125535f0d75b0c94013ff859c1cb0559abc41255e3cc1259d7cc3d2eb8584e3. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/QMFMF2353577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44d8693025d5422de954f1ae82be4ac72a51fa7fddff492a5996b472d5d48797. Chain 2 (Bitcoin): anchored in block 958785 (2026-07-19T21:40:06Z), 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/QMFMF2353578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed78df5cbc87522eeb7e02b9568091551c6df797111b4868704bf2f36794f9bf. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T21:08:39Z), 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/QM6MZ2418693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac8d26fdce62d86e8e67dc6810dcb16f94332728a98d0b18266a46393655bc80. 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/QM6N22433260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62913cf25a50bced68cdade7722f05e25a58ab26a44cb3c1deb62c0af5fd9d58. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QMBZ92405960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09289cf222adb8aef85b0ea55c6befdacaf75a7a8513ee294407ca53d40a05d2. 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/QMDA72429718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38146dc70898fdf99f6ca61ca5e127462d22c5c5348192d423c0da93e4fdaad5. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/QMDA62443291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd37d2228a791f35b9e1b47bb9400ac680f51073d93dc38fe30e3c9268e8e15df. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T02:28:59Z), 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/QMDA62443290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03a71fce648e084348b9665d43645f23128fc87ac33f9640780ec75237ca384d. 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/QMDA62443287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb3ef3a8f21d6a64ea79b1e60310d5fb0222a5572230d160ea293e99e00aa6de. 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/GBAYE2200133.
Make You Move (feat. Nørskov & Keeya Keys)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa7434809cd87bd92f0b3768cc868ab5a0abd472aa1fd5fefe01496d7c57a398. 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/GBAHS2100349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd110c5dd5f0f515d9809b47fa2880648301a79d72f177dcce278b49207cf1912. 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/GX3Q92477343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40852e005670da5e9d0ea66000a0b13134a870c2c47d142b73fa29ed76778197. 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/UKQNV2100019.