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 0xb7b21935758ef57a9aa1c17bf6fbaf27bee2add992c6b445c97167cfa2e992de. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/48c898a2-ed26-4d75-8b5f-d30355ed418b.json and https://artists.proofprofile.net/proofs/artist/48c898a2-ed26-4d75-8b5f-d30355ed418b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Observatory / More Hardcore / Minority Industrial Complex
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 0x732e90e61c559004d0e62cff636c5a4992c51ff9922dfdf2be4de5f1442fc370. 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/CAX1P1900009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5e3994abe5867cf3000aae37337d17675c4fc9bfbf573662025ef01e175c748. 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/UK94R1400023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6bd338a6ead9d5b82c680cbf20e6f75fb5fb4cb604f3bec9786cd9da659c36a. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/UK94R1400024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32c58e7e6fb6779e59485de49050f3fcfb9fb6985f76c5e8e5d87321e27c5a5c. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/UK94R1400036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x346b9f4b9c0f5efdf72cd326468ce86c1cb420718872cae6ae01f9e549fb8b72. 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/UK94R1400037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dd2d628ed3484abf272ce0dc024b890f384113fa2ec0bc5f95b5914095dff42. 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/UK94R1400038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x430696b23616be039db7f6068e0efe4fda7e5bb17c135ba2c13511b044c93f7a. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/UK94R1400040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe38d9bc56b08fcfdc47d14172eb67f1bf499d62803d96aa34dcb45378479e4de. 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/UK94R1400041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56c1c5e686181e880dfcae34bd52d73ba53a587204e882dff3114d4676169384. 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/UK94R1400042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb30aa062ae4726c71f6332845fc5864962320f72cdfa744a78b026c5c75b50dd. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/UK94R1400043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4932d45f4c68629b2ca34ca0b749d2bfb39dd975c00c9123e09eb92cd497e3d9. 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/UK94R1400045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x805dc45c449ddfa8d9bfa24165611c90243897c77f2470e1cf64c39de927814d. 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/UK94R1400046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb02cd6ed63ef667e53d2c5b3f5ad372e5b581ce3ffc0df23883de310ea7317a1. 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/UK94R1400047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce3405a8934190bde91279ac8fa4e6f9461e8f8eae7b5f587f786b20f364167b. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/UK94R1400049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0a511f962a17d983bb51f4d3bb05bf4a5f7549a042d4c21d11add2017d45273. 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/UK94R1400051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x302edefff0b3008976197848de8250008bc41c43f57184d4f218acd37c4bcee4. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/USA2P1847509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7015181d87d2ce96f6d8eaba0c0fa82dd964db7887771ab482df7f25a2bf89de. 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/USA2P1847512.
Adventures In Perception - Dead Man's Chest & Josimar Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd0ac1774eb4ce31f8af795c2229a129eda8519b569911670c17c78dd901abac. 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/USA2P1847510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x367bae070ee2adc5f1be1224d9dc040a792c6e309b26f3eb18425ca89857b3cd. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/UK94R1400065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e409251a475678553f3b4f20bb49dca11174134d3a993ee2c62a0dd87b414c9. 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/UK94R1400066.