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 0xba676086ae66c822ec4c64606b67a5783ee45f07d0ee6610293862f7a8107d23. Chain 2 (Bitcoin): anchored in block 953777 (2026-06-15T11:52:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ca30f2a6-2773-4866-87d5-0b19eaaaa088.json and https://artists.proofprofile.net/proofs/artist/ca30f2a6-2773-4866-87d5-0b19eaaaa088.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Overview: Meditations on Nature for a World in Transition
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 0xfcdee99022fe1888deba91ef6f8bd101690a4e8a84a6819021dda6bba59fbc7e. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:44:50Z), 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/TCAHS2354267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb4a9c44134cbc2b48d9078cc93a3ba2dfe66e65364c21368fce195b93893e9f. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/TCAHS2354278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7393ad205b937c46688eda6b3595285ecb7486a4b9594120696bf3f1321fe9a2. 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/TCAHS2354319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f36431490e44bbf10eac04c2ce0eae279fe6baaaaeb7a0c7a9513180c74b84e. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:24:59Z), 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/TCAHS2354320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cd13b7908cac0393b20a288be681baa554efe71515bb1e029b60e7ef6a8db49. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/TCAHS2354326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x955ea961511035e52e358cf6cb98bd75448178f2e9dbc2fbb7e5a5d3458e6b3a. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/TCAHS2354330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb20df2aa52fa506fdc6d9feef928240958eeb3201550ea257fcb7fe630e02b1d. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T01:48:26Z), 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/TCAHS2354349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84e1079f33eaf65a64b6554b8981a0a1dd4e69115564f47bdcf1f42f73f6c99c. Chain 2 (Bitcoin): anchored in block 958965 (2026-07-21T04:29:05Z), 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/TCAHS2354358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x338fd0c9a14ec2303deddf509a423e639e6e9741a52eeaf01b5c0b54ae7e388f. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T02:10:09Z), 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/TCAHS2354362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x422821a90c49d8399a551af16009a8b90f0baafb5e840d167a813c75a65d34a6. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T20:59:16Z), 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/TCAHS2354370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebccded8243aa896535710467498a1cd7d115b0ff20c4eed422ba880f49ae114. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/TCAHS2354372.