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 0x85514e3b6d4deace5af7f250ae65f7b45e1db6915772b44ae2770072e86b15d1. Chain 2 (Bitcoin): anchored in block 953736 (2026-06-15T03:21:19Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9763682f-98dc-48f3-af9b-e607233e9e76.json and https://artists.proofprofile.net/proofs/artist/9763682f-98dc-48f3-af9b-e607233e9e76.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 0x5bc741de3c1d1d55d110856f960793e70bdf7cb729cada1fefc2287118d70336. Chain 2 (Bitcoin): anchored in block 958891 (2026-07-20T16:21:21Z), 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/GX3HH2197673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99bb371383349420f6114d7f23e3442961d4f3de148f6330ee847aafe8239af0. Chain 2 (Bitcoin): anchored in block 957852 (2026-07-13T11:25:45Z), 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/GBSMU0103376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d9b73758438017d9aa74442e7e06ac83b10e1d67e5cefc82e8e562cb9bb6a0e. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/GBSMU0103377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30282f8b5163ded3029c721f2ead181a83a4cdf220ae739071a4e7ebcbadb0fa. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/GXBDS2309337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7452b2e6757305553e425fe58e4933852bd565da448fd1ee25548ba7dc197f40. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T23:06:43Z), 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/GXBDS2311116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00b824a424eab2c40d1254d495c2bce6c61c58e8c0a2ff40e37cb53327efa089. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:44:42Z), 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/GX38U2479963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5fd2f0f4d8f47f48a79345145e17e07467880c75bcef545868a8c7e0c69bfa9. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/GX38U2402176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab63b15a6f2b98de34a0a83ed7b74ddeee5a97e453fc2dda1fb4c1502d17f9ee. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/GX38U2405323.
An Incredible Amount of Overwhelming Information
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83595e182802292ccf46cc6c5b166fc533a8256dbe3556cc8e6824eb290ef6b2. 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/GXF972423866.