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 0x177d9b551a1e5fca5e88d68ec8cb57b79b1638a90b3af20f880a7f60e25e80ef. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/81dfa864-6eb4-4b1a-b492-16294caecd35.json and https://artists.proofprofile.net/proofs/artist/81dfa864-6eb4-4b1a-b492-16294caecd35.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 0x0138abe5b4f2500f72f137e7307d0077db83f81c8bd8c98fe813598fb5e5f84e. 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/FR10S2301978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd163b0492fbf548bd3ef1eeb6424bd34a1225c1542c12af5284eb7ee69151da9. 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/FRX762340136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8660f3fccf61b4352a0d58af35b4db1f853e3d891a7dc1466d528847135aa9a0. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/DGA052372324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18620e33858fd905db3e37ae7e87b5a9c4fcc0fe5b6772f0caf8f245c8d7d93b. 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/FRX282287600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60f52d2925e0986624944f615462fca777e5737afbf7d32f7095070ca8d52d80. 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/DGA052366886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57442a987c51b53089467a36b06052bc6fc515c382eec3d5090485c47a3f7fcc. 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/DGA052372326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62565d2c0e27809b92265e72754f38e80999619a31cafc7fc93b625044061fa2. 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/DGA052372319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e184a9f23aca7818bc9d48cbb07e5cef4c2dd1915b643942bf3871f538db666. 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/FRX872363140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab82566d27b7061bfcce193e58b361e83b7facd83aaed9c1dccdefdbb652dff4. 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/FR2X42279940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x285eece09b5a36dae7a782055eb7fb7905b10bdbe4d91b80822781c54f0277da. 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/FRX452381360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xada5e56dfc264feea36a2cbb0da39a64e9a0be4d73f56b966db0b66a9d758e83. 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/FRX282231208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cb4468a2722ac273fb7cc25050cc7cb89592c0604955285c942ea29f662b156. 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/FR10S2300134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fff1e00ce97d6c1fea59901e197d4b3c245cc3db22ee37c4eebff7e55b0dfb1. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/DGA052372317.
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 0x5e9c49a0a958ecc0c6bc52950bc67b4d072e4c8c3602d5eb872f72b048a9d489. 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/UKY7B2000044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8424fd197db9b4cd4ee387478ad5ecd3429b2807e7e240af450108298f1a7d04. 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/UKY7B2000041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa63b4ab83920970fc85873433ec0dbc331595e68b89527a5113665fccb84fdb1. Chain 2 (Bitcoin): anchored in block 960179 (2026-07-30T00:39:11Z), 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/UKY7B2000042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x072e22201a22ec62f368ed30e876d1aa7a0f037c35bb4cf61a5753c806885511. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/UKY7B2000043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd63376af1cd91a0964a97bc78f89a9253aa159e3c87d7beba7cb52859bc4569b. 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/QM42K2308734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa17e32f4c94f5a69fdd0b60d5724244894c78cad0e2e8c5a2021e55c7bbd2f31. 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/QZS632354420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb044218c7ab1f5629ca02f570d161839c80ea57a84e64475a9172ceb8c3a328. 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/QZMHN2324987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5727c0eb550eb0fa359efb528e153f55294769728a765c50c87e427b9852ad43. 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/QZMHP2399905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3012a3acf38168c790b3eb14f3cd636f11092d68b7e0d1150725068d1dc7063. 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/QZS642356839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x916809634896a12e5b670fa5f19786d37c82986142d2258b9d35a6f00b844fda. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/QZMHK2397691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2ef1082378bde5071cbc437d55665ecaedb8c489b1460a42299c167f8058690. 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/DEH742409750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5499bd10c646ae6af179651a9dc295f83b7832a3d82b5d51546956395929b0d0. 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/DEH742409753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dcd3ce50b88a07fe06e7c893c37df5ad11ba41f66250ec9def293ba6277f092. 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/DEH742409754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29806baf74a61e4a59056500cc6576918ddf8c378482a9b564a6c96529bdc8b0. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/DEH742409756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c2ade8a1b910f7a8e6c28d05e2cdc5c6840ec897587c134eabce60587bf6789. 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/DEH742409752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21c3e1a7e8d1b9a933717ce2328ea823eb69800e7695793f23478696b7debb3b. 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/USLZJ2323723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbc710b007988271b9fa734e66935afe0a44b7ad3d28f96863737215dd1df33f. 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/USLZJ2172220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1db725dabaf39393ee4053c890955cd982b51c1749100e1e4bc187c12744d8d. 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/USLZJ2172222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6f1a33ee21e31d26f0ab45da00749b7df11e792e25dfe9a92aca75090e68576. 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/USLZJ2173962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbccb2ce933a0c3eabd1ac3a1d78cd078e1d2c2715aec9aec4c99dddc7a19c49c. 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/USLZJ2173966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee36e57320627e88f02e55a647f04b0553b99a7e7a8fd6b3c0035f771cf75031. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/USLZJ2173985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb556e57374423fbc2863875e7f6654381599fa54feaaa2c225d18230563779c. 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/QMFMF2202703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x831cad1d14d829ce7533f76194bc9bc1d9cfab4f095139cd5a38094de4d215b6. 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/NL8RL2330303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6f426ee754ebbc9060e69209c63947ea195a1e4ea828edf98101029a1ed8d34. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/NL8RL2333518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43a1afa6dfc492e88f9721dc24b69b9fff27fdc98c1eb86d0888c7c42365bfa9. 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/NL8RL2333519.
WELCOME TO THE FARM: DISC 3 (THE REMIXES)