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 0x8777b4e3882bd4bf0b3380301121ccaea2ea2e52aa7a9b0461982ccca53c723f. 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/3390f467-187f-472f-8242-59527fbd9884.json and https://artists.proofprofile.net/proofs/artist/3390f467-187f-472f-8242-59527fbd9884.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 0x80e39776a78714d9c07ed537e212a2173ad046c469c2663cdebc6ff3cbce0dd6. 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/DEL360600335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f6309997127ae84faccf4f5f20e68686ccab97995599145b9df29cb1a2b7baa. 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/DEL360600336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9a1a8af28682f94eb6164c20a5ab2b63630fdb31fe1163da2c990e513fde3bc. 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/DEL360600337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ffc05f20d6c70f60c52663bfa6be5acb2d3c3b750e448f00ae831bf6d8b2db3. 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/DEL360600338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dc168867742fcbe37ba9efd34579ef16a5c01fc23706acde0383ad2e15c3299. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/DEL360600339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc54bdc573e90fd3c1fdd54ea69f3a457e5982d999f4a444f5fa839dfd2e26ba7. 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/DEL360600340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11553bed2080d4ae33aae43ee98da1c8cd56999154578f05c4d5743a6f27e3b6. 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/DEL360600341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54f13fabba7f5ea461f769599b43bd3de30ea0f5bc4df2e650a2939051d9e2c6. 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/DEL360600342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x306bcd778668b4f2d9d2af95e9755f6e468e72ea94e9aa503c22a08ca99465a1. 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/DEL360600343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb8af70a684397d783f7b250ca9d55e54b0309ce17633349cd6e93b1040764b7. 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/DEL360600344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x183e14a3fa18d126129c6cae478563246b6d8bb8205ff22e06694111885e66a7. 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/DEL360600345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3abcb2939c779c71befd2737a40993855a0b8ff74f5152303766c58e3518521b. 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/DEL360600346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x133149f2c76133bd792926f5e93d63e07a9b78ecf47701faea19e207c9006658. Chain 2 (Bitcoin): anchored in block 957032 (2026-07-07T11:43:09Z), 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/DEL360801844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4720c8b3e6137428b45275fc9800662f31ce0d0d8ca58f350499b742e263240. 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/DEL360801845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5174a06c914cd3ab6f6df38ef51becd51d88059323d0f5b9fda2ef3554498cb9. 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/DEL360801848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4832072dfe0f9374afd2f7773c84234c62e988a7c9f6958c9a7f1d200781d0b7. 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/DEL360801852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b75cac303cc7df553e7b23a35ae49d0c4598e339dd42692b2543283a15407fd. 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/DEL360801854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b1a172f0e1f9b7a8d208208499ecb2ac915b9a9bcbc0a13bff6c4944fc4db81. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/DEL360801846.
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 0x85c76bde97f83d9bf69ffe5a4515fc608ece860ca34ce48f303c9aa5451616aa. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/DEL360801847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05f8ec069c8966ef9536ffb5811b327230930d44c075cf071f39bf6d82a741eb. Chain 2 (Bitcoin): anchored in block 960198 (2026-07-30T02:21:55Z), 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/DEL360801849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4ab0f2dfa4cd1b4a8f4c89d45e0b991b170c0d1892cb7920774fa23b5aded70. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/DEL360801850.
Xfixiation (Myer Burns The Dancefloor Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x483af5b2def3dfe3e956feeb3d68822a6a1abaf560a9d0a47aff22a9c506ad71. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/DEL360801851.
Damage Limitation (Limited Suffering Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dabd15c632c2bac1c34014982a940d538bc6d9b26db02ee9e5596c4fc6ed58e. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/DEL360801853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2f9f0e5933d282d9155d74b0d5baa264166ff62d1dc24ff38567ab401a24b07. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/DEL360801855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x257625af0d466fb1f54b083a942fe0f16bd7c5542cf49a3a13c0aeca31a32b96. 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/DEL360801832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x433a3915f4932ff1fcae053dc65f16af532429566f9f3ae9c5b279b8bf025c33. 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/DEL360801834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74278dd6d10e5c74bd5fbc2e8f169892a3798c3197004f0e270549040f306379. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:48:10Z), 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/DEL360801836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd207e2b73ca5cf7a0b4aade1ce3ddf733349c25fef1f3951ee3521d93aa9a1c6. 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/DEL360801843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab280b9b8d90bd64a06e9bf6f5908c4cdbb32ce8c20be07def1d300a6f284754. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/DEL360801833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc8d91f3d9b9363e3127be00c71cefc841102537be82a37dada36d35c7c2d0cf. Chain 2 (Bitcoin): anchored in block 960175 (2026-07-30T00:16:15Z), 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/DEL360801835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f93337e3bd55d7620403b3778718f1265d89daf0733529be39659d9028ffbf3. Chain 2 (Bitcoin): anchored in block 960268 (2026-07-30T14:53:07Z), 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/DEL360801837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ad992e9de3ce803fe280807df454db1abef99f7335e67165384277052966bb2. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/DEL360801838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6b1d272f071dc46ecab3fb57c6f6fbb1359df86e701cb0aee85639d27bbc7e5. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/DEL360801839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6480431f1d335a4807991158a10d76a14ea577e63482b7427c8f244b7740bad. Chain 2 (Bitcoin): anchored in block 960300 (2026-07-30T19:42:40Z), 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/DEL360801840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x668f67e6402a555ce33ead45201a4a27b0b46b08f6e01bdea637f545531c8916. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/DEL360801841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a22ebe3c56c203048e724626a57815346bf7354386d06b3452925e331f3b5d4. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/DEL360801842.