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 0x66f3f24fbb0bed76f7a3877c5e51ae2864f48a31ae9d3b852e2d9c9ad338a2fb. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2e996ac2-34e1-4adc-84c5-4f997ba4c51e.json and https://artists.proofprofile.net/proofs/artist/2e996ac2-34e1-4adc-84c5-4f997ba4c51e.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 0xc6d25592ba5103ec694cd6945c23bf8ea1b6aed488ed6d3f252527a29faadeb2. 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/GBKPL1957482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96729552306d3f4a0ea330d56d9bc8ac0cadbf278f2032f000eb215dece5a5d7. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBKPL1957483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddc4163308cf8ad1f83dd63aa840d838c19d2acd88396d341f07a5004becfba4. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBKPL1957484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29cb6069fc465c56d6d592d2e50bba92a76e3bf34534e6c6e50523d6f8b6c631. 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/GBKPL1957486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb897088adc1881685e63f8b24ea3d10c686f003956f05284d819a5d2ee3b5128. 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/GBKPL1957487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc885a146f030ab73d6f7c128287477ac0de90e65b09013b2b4221ba5c59adf7d. 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/GBKPL1957488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15bdad4a024c5d4fcd275ca3b4f3a033407caf3477d2012be2ec4c6e90ea1bf2. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GBKPL1957489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7e9576238bf92bdebf7d3456e8c029bdf290aea5397ba4d9ad3ea30c99164b2. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/GBKPL1957480.
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 0xcd47d32a12763b872239c8809ae28101534e5aec3ca430e65aad223dbcea39cc. Chain 2 (Bitcoin): anchored in block 960179 (2026-07-30T00:39:11Z), 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/GBKPL1957481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf57e8351b3bcff0dd7f8b8c39f2ef2b909f4dd6544e5e20c8720b177ee8a1b4. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/GBKPL1957485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9ef5b9bfc0eb9d73b8ffeb2c99ed1311d26b28e55c1d154f0a450c93eb8189b. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/GBKPL1957490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57931ace0542973ba4e54b236f40cce45482b84ca7584d9ea0a66254e51f45e9. 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/QZ8LD1924264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1eb3a58a45d8cf632f40ca32bfbb42d10d4f10af2a97b295663cd377f5ea035. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/QZ8LD1924259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xead3fd9a54894df5fe3a82d6896e4168f6a9d86e676cef3ef3455a94c7d29792. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), 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/QZ8LD1924260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec145526fae7dfedf688874d3d39e2fd5b564b24f5d208f013b74dce29757c6e. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/QZ8LD1924261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf115b902c5fdd224e3d046c19c75804ed7eb1bd14e14b9879dc73605cb9859ba. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/QZ8LD1924262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65ac47386029bf540143d1d85bcb52b15df6e062cd2880070c9bf2051969c92a. Chain 2 (Bitcoin): anchored in block 960175 (2026-07-30T00:16:15Z), 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/QZ8LD1924263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x903540d4dbcad6a79c044b67e30406e7fcef39f265bf78ff6ecf54f1d774133e. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/QZ8LD1924265.
Caleb Giles' Sound System Live At Public Records 07132022
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21f74f9ff477c7dab084d7924c743076a48d986710399dd5f1d0e735cd8af241. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QM2PV1882527.