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 0xf8b41900939ce21f7d1a471a8064e138864eb800c801f87885590c87116144d2. Chain 2 (Bitcoin): anchored in block 953773 (2026-06-15T10:40:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c701d548-52a8-48cb-b367-2d7ca0054047.json and https://artists.proofprofile.net/proofs/artist/c701d548-52a8-48cb-b367-2d7ca0054047.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 0x3b5154f6b7e02708add79c2db4e124854c3a1f2a333922f275795fe5b2504124. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T23:41:50Z), 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/GBHLW1703256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1c655cd8de5b1a1887946fd9f380fd7e96d5a32e3dc9dc763d7bd93dc8baa38. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:52:52Z), 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/GBHLW1703258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c45d532ebadff22376847bb6c4efb18e4a1bd6271e919de66378db57201ecf3. Chain 2 (Bitcoin): anchored in block 959011 (2026-07-21T16:08:38Z), 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/GBHLW1703259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7350014d42a1bc9591678c722d470b352689301eb9d18bc27d2c24a5a1f316a2. Chain 2 (Bitcoin): anchored in block 958681 (2026-07-19T06:14:54Z), 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/GBHLW1703260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0df4ac55743af5b6cd9c8e68f44b47b299d25a7382ce5778248dd617110ee48c. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T07:46:19Z), 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/GBHLW1703261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07c092862b33e90b300217582904397e8d839ae8f63a6ebde3e23c07d882c8bb. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/USA3U1914505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65559e651bf2b76da77553794b0cf6674286bcf5633b72829816c79b5d286614. Chain 2 (Bitcoin): anchored in block 959013 (2026-07-21T16:23:49Z), 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/USA3U1914506.
From Squats to Lots: The Agony & XTC of Low Life