1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x27be2b51d3a6ac245e47089829fa59d717e12da1471b8a6a1e0db06aa852d552. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7330c413-23f9-43e4-a9da-0b047b68728c.json and https://artists.proofprofile.net/proofs/artist/7330c413-23f9-43e4-a9da-0b047b68728c.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 → block OTSBitcoinBlock must exist at that height 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 0x0ccedc9c2a814b6ebf0fbce01a1585c1400f42fa0a6ce2ea4dfa9cb06a6727a0. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T11:51:28Z), 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/TCABO1304070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2deee17981e6e3cff99d9c21d77ed6b5303eb3923b153e5e3dc7efcdfe6638e5. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/TCABO1304076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cc89402eb078dcb0954be2f251deec998536b166daecbef920b20552056b0ad. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:26:44Z), 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/TCABY1499830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e9d47078b4db31cb7f58619836389a614d3010cddd8b8b3ff6d4ad076238ca5. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:30:46Z), 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/USLZJ2176452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x424014289c9dbc6fbb4168f7774e485194deb6dda56bc085c965f5df5e49d6a5. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/TCADF1771285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf11cba53421c907b6fe5026805b24d9a062dbb852f3fdadcfe77a0e2cdc43ee. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/GBRKQ2324270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16f47e177101f7b859a97685db2e3ad5101698acbc942a3cdd06cca9f8eb8719. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZZ8A2482672.
Indie / Pop / Folk Compilation - January 2025 (alexrainbirdmusic)