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 0x945e4eed0713f9835975f5361322a61f263858b696d21d61672012458c5c836f. 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/7117c6f9-70f6-413a-94ef-732dfc33024d.json and https://artists.proofprofile.net/proofs/artist/7117c6f9-70f6-413a-94ef-732dfc33024d.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 0x4964ae84dcf9755a5b230271b54e1bbce3e891f3cb7b9c0f3362405aadf3dbc6. 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/QZES52112453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4d5498b270d218eef0b6b68a13625094205757994dd493761ed6d6bc8f39ba1. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/QZES72196250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf40a8db6004c0f745be5b55df5aa7d3ec1c366e114ecb473451ab68ae396a204. 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/QZTAU2130280.
Every Night I Dream of You (Late Night Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04c49d60b0bd2cee506c30033bc3e072b9c3859746efc8ff68b8783639e8358d. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/QZK6G2250430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d002bbf171822ea40c1db96040deb2914a3b50a91ae629feba673fd3ee468d6. 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/QZNWR2206128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30ed82d45b0335a32d510652cdf4ed0cd9cbe017b13b117818245f19f36bfb56. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZTAU2287429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7ab73ad140935bd314bcb2a93cfdc4747134d486fc1e5978adcc44aab0409b7. 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/QZHN82149871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4d5498b270d218eef0b6b68a13625094205757994dd493761ed6d6bc8f39ba1. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZES72196250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36cf6bd33d9668ba79a45208bb1f7d9216f1a05440726a2e5d207acd85bb2a55. 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/QZPLS2236440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc5f7d1453e62f7cbd4518048d980edad5e2fe33426351df1223184484c1535e. 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/QZTBB2229733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b1c51d0cfe3cf27faa367282694bf0dfbe409cc1b0a2e9092a6f6ef189adfc3. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZDA72377620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfec95e37d403f968dafeec3659d3751a9ae5a470a0a826f2b743d446a568e373. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/QZTAZ2331455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07df29150e2d40f8273378e8f3b565068b9baafefa6f274ce498fbeacc627107. 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/QZFYZ2403883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1ba9a216525e1207117086bf793adc53684235d316d068b06183409c81b23fc. Chain 2 (Bitcoin): anchored in block 958870 (2026-07-20T13:39:13Z), 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/QZNWQ2448570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba3df25fdda06aed81a9283d213078f6fd28baf4c864ae959301d5a646c3c92e. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/QZHN32300206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfec95e37d403f968dafeec3659d3751a9ae5a470a0a826f2b743d446a568e373. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:43:30Z), 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/QZTAZ2331455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1ee2ccf0399848b2403be671e7fd1ca8f5b4ca123f29f0749324251959a746e. 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/QZK6N2371093.