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 0x959b8027d14864474367f0aa50064e83d6c9c3852b953577e0d74b6e3681fe2b. 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/dc117bcd-300e-4f55-9273-a43ca3d829ea.json and https://artists.proofprofile.net/proofs/artist/dc117bcd-300e-4f55-9273-a43ca3d829ea.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 0x2da6703e371cae96674a49cde1bc7bc2d165c1da9729f6dc1f08a02415bc73bb. 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/GBEUE0300610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c37be4bbb9e17e245b21a08c668b1dd834972d8215e426f237d35a3fe736546. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GBEUE0901482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dfa1028171258b542cc0fbea6b7b78757cb9f8441b5d26bf36692daabbd20a0. 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/GBEUE1500249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x668a5fa1425ff9f128a0315c88494f0cbcaf990d0fd56ef540fd1f74a146e0bc. 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/GBEUE1500250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c4c6ac6aeb360268a96e0febf9768cf2d31e4e970e54ad097f92bb71a91326c. 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/GBEUE1500251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd5c8a54daf14f868d4cb0c5d48f0cb8b75084e61c3b38e02c228ca49c362cc5. 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/GBEUE1500252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fe8fb54e057ec7d6d482a69af807185fef9857b23863f28ebf008f0125a4106. 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/GBEUE1500253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ec2b7d42a580d9b4949a9051645acff5091b682e6b90e4d209b6862c94c2885. 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/GBEUE1500254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf880cb1a2eb82dd8a556fb3fbd10079cef5f4c8dcd01b184b85ca40f75fde04. 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/GBEUE1500255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x486588f95b1fec91267e102a289accfb81b23d77e54cd4181036ef0d47606420. 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/GBEUE1500256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77d9770d025c0acdc41cf10f418b2459cfabe50ed7394387621da508a749c439. 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/GBEUE1500257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1eefa0418343db9e07753855f6d1e2754131c1512abd4f00ba152942b0b0ff4c. 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/GBEUE1500258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd25a3fca44ed0bc03e97b6144fb4ae607c1e26388f547fac3550ef782d124370. 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/GBEUE1500259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7909fbad1519034e4c0aa739d891cd56c4ace2df16ebef4702303ce598da5210. 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/GBEUE1500260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32bf040fcf544698d5b800a287dea00d2e8286c9296f77d9f6e993ddeb82cddc. 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/GBEUE1500261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc041fd1ec9c002bc4d57a101fe4f04eab2678cd8241994cfc4e893cbe1021dfa. 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/GBEUE1500262.
Quantic Presents: Worlds Rarest Funk 45s, Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf98008379b743fdf39ef8f20195859bcdc58ce1e014c8c5e9beeada84125b03a. 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/GBCTF0700030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c5ff1dca5681550bbba4416b27b7f5da353b099c5424aabd8919ba7e6f8f464. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBCTF0700031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3d95383b719a5f2cddcdcb5fa979832acd238578affacc1d766494f47c05238. 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/GBCTF0700032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7a0d494b7470ce4f012eb89f2423b00da94faf0aa02042c1b108800c4093b00. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/GBCTF0700034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeda8e84b71f0f85d208e665f80492ab4c334605c09ff893fc95dbd11e79cb68a. 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/GBCTF0700035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e83752fb3e18885bb75c603ce01848c71727264b1871d7f9102b739f0b47be7. 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/GBCTF0700036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x722a111286d912d81ab70859e6a7de6ea6588b1e40aaf910737af85c842f0fae. 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/GBCTF0700038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3c5db277ba862fcf77ea3711916a8e956983e7b2aee5c115ed8b4d41675e70d. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBCTF0700040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3a62dd0af2dc228fca69800b8d8bf2339b952e7619f8135f82bc47351d6fed9. 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/GBCTF0700041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf853072488fa51aad17d960df8eb37211d5cf7c056677313235466c9290e2a33. 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/GBCTF0600038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e1ad5f7b48c7f3c4651a4dc0c61a9334e71016cafd01a67be06e99c57736abf. 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/GBCTF0600024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2b3c239903d949adad1085db9841c43f1ea8f24fd9be17cc4d020317248c036. 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/GBCTF0700044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ed3d6aa387ab9cddb98c722280aca373d8e56645699034d1f5e848c2fe4271d. 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/GBCTF0700045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4063a638ece400c991e9292ce7b6fa2612c49d1997273e0c34b2e8c4e1ed5b37. 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/USUR40414416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb22064a984a99d94328a19c9e7235719b021c54104bd28ffe4ab84dd40a0e03c. 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/FR10S1833030.
Tribute: The Finest Cover Songs by Kid Loco, Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1bdc7d5ebc145975175d1aa475b18653831fb7f16a1d2e09c31c19f7b6240cc. 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/GBEUE0500159.
Chill Out Masterpieces 01 (by Hotmixradio)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53dc6a7d5f0af99dbeb79dfbcc7ea596b0e6195221a627a1932d283fbcf0247c. 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/GBEUE0901804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb780b01c8273c11dd9c72c6efde9537fab3190fcf2362be2280260610f90320a. 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/FR10S1833033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38763cc42037847e73c167b94ff5cd37d033a4877fabcaac2161d528d4e4627e. 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/FR10S1833036.