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 0x200497b25613074361040b747d23c5026b5b6c4890975e4a4b7b60886fbd3b42. Chain 2 (Bitcoin): anchored in block 954555 (2026-06-20T12:10:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/aeeef8c3-f932-44f2-8d89-89d1cee5c210.json and https://artists.proofprofile.net/proofs/artist/aeeef8c3-f932-44f2-8d89-89d1cee5c210.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 0x70809e44bfa34d5c80c843511d62ccaef6cc907d4fa34fc0c7c581cf66f18082. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/FRDX62200270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15fd83d25cfdedb9c6ea3660612787a25f58752fca6a232d6d70827f092e192e. 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/FRDX62200590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c29a2417103d97c0473cb91030a50118675bd01a2a1cc6362d16205243e76db. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/FR59R2113338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x554648fcd0f1421f76dab5f73288b07ad93bb05c28202e22bb4525e76d9ee35f. 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/FR59R2113340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda8a55c40d505d93bf14f3b7a3e9bf897210d04c743fbfa8f38e4d18dac728b5. 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/FR59R2113341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5708f32f330b4b8a4c3e1d706dae405b259e9a5910de0a493c2adacba70d6e38. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/FR59R2113352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3640dcf528765c9d01dfa99e9a3f6bce58a96381eab655e54e37edb7f53e2b5c. 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/FR59R2113343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f71d57146aee329723311ea03c23aebc18d1cb16ff83c5ca9803d0e74fc3f59. Chain 2 (Bitcoin): anchored in block 960288 (2026-07-30T17:41:38Z), 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/FR59R2113344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31bad1749e2b91130743215879fc3e10792774653d92ced8707c287da8b0a723. 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/FR59R2113356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fa9ae368037df64ba0bc7959c18857700fb54f4fb480afc104aa175e2ffc5fe. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/FR59R2113357.
Unreleased Territory - Low Voltage, Vol. 5
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e004f983b7de5ccf1271891cce05dcc5a7ee287c2cd110aa7799b4924f631cc. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/FR9W12434842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc16dd580062f533d4e7a85879fc70ddb1b5137b33d3ff9e59294c614c71196fc. 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/FR9W12434850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3f82d161d31ef4a6f9a2443bb8ff931753d1175a9b880323fb529060c997abd. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/FR9W12434852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2579b9f48de2daaf99274f8875bba6933529b8fa56d947cd0928d2777e23468. Chain 2 (Bitcoin): anchored in block 960422 (2026-07-31T15:27:29Z), 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/FR9W12434861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf5fb0b4c919d8c288c2f9efdfea05d2bd44eab8ce754a044e975f603c5c1901. 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/FRDX62201830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3c20a77200e81cb4ab9443f9d44e38f50aec684af4b76c4154417e254a9166a. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/QM4TW2010272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b2f5183e1aebe65f1605b098b5b2b9ddb68f4c19b0f3e697c6290b6e68a760f. Chain 2 (Bitcoin): anchored in block 960288 (2026-07-30T17:41:38Z), 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/QM4TW2010273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10c290714f22f5691412bdaa63e0522ca70453c62b3a0a28bf819bb71fc1aa82. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/QM4TW2010307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7167771055dfc3b3fda689cb293e19884aca98b9ccbb2f2e3f557afbfaaf6b43. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QM4TW2010308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb47cae34abe4459b4a012d6a578743850866f7d89d377c08b01ed55e301165e8. 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/QM4TW2010310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa80c50dc8559f93441c9df93e5bce8c7a63d9e06095b9dfa6146f55d400f315. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/QM4TW2010311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3379c9002417fbca234a95e0a6c623d0c7366bbcfcd6353d9393090bf1b3f4be. 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/QM4TW2010316.
Nothing But... Organic House Selections, Vol. 06
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x445cb7d75bb5f74cb5425e3b1da6b6121df67db7b2dac3b3a4e2e07147e80e43. 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/FRX202029626.
This Doesn't Look Like A Good Place To Picnic