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 0xcf69fa25243d0ee8268da7b07d607fcbc39da1ee3b058b0b5f17dcb22dd00a89. Chain 2 (Bitcoin): anchored in block 953657 (2026-06-14T16:43:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4dfd2c66-c93b-48f8-86fa-bb544581f72c.json and https://artists.proofprofile.net/proofs/artist/4dfd2c66-c93b-48f8-86fa-bb544581f72c.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 0x93511db34b630c8a97b78e1d5bda842a8e66dae476d69cb13c885e2550dea1fc. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/USUM71602782.
Every Little Thing She Does Is Magic (feat. Armand Sabal-Lecco, Rusty Anderson, Amy Keys, Carmel Helene & Tamar Davis)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe36fe39b0c6770792f4fab807a4505df3d9997a9273dfb942f8e8569355b97ec. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QMRSZ2202574.
Message In A Bottle (feat. Armand Sabal-Lecco, Rusty Anderson, Amy Keys, Carmel Helene & Tamar Davis)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadaddd6614350947c59631362e8c65cace6bf1ec8382e901c1ee9ae4b82fb58d. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/QMRSZ2202572.
King of Pain (feat. Armand Sabal-Lecco, Rusty Anderson, Amy Keys, Carmel Helene & Tamar Davis)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41c95ca5fb24ffc5cb5c2ecbe66e62250d5d4e07ef3f4e5d096aab50401461e1. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/QMRSZ2202566.
Demolition Man (feat. Armand Sabal-Lecco, Rusty Anderson, Amy Keys, Carmel Helene & Tamar Davis)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2a0c0d6eed5ca55caf543d7556bbfc1148fa82744b501701125202e53315476. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/QMRSZ2202565.
Roxanne (feat. Armand Sabal-Lecco, Rusty Anderson, Amy Keys, Carmel Helene & Tamar Davis)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35a9e46426a2a3ab838f75fea0cab7c1282ed7f8f94d40ab70a878b12e9fd454. 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/QMRSZ2202568.
Tea In The Sahara (feat. Armand Sabal-Lecco, Rusty Anderson, Amy Keys, Carmel Helene & Tamar Davis)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9e0370e04ced4d50b79ad8e8e2ae05bbf57d8471f60f78d307609ebb51ba4e1. 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/QMRSZ2203521.
Can’t Stand Losing You / Reggatta De Blanc (feat. Armand Sabal-Lecco, Rusty Anderson, Amy Keys, Carmel Helene & Tamar Davis)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c66e630a7623664ff3089225bd2d3c1b967b38eb1c87dcfa25169126619dba5. 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/QMRSZ2202573.
Every Breath You Take (feat. Armand Sabal-Lecco, Rusty Anderson, Amy Keys, Carmel Helene & Tamar Davis)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb60eaa9ce39a81eff0dba871287d15b3e4ee82c6f37c667385ccf9b246d2651. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QMRSZ2202570.
Don't Stand So Close To Me (feat. Armand Sabal-Lecco, Rusty Anderson, Amy Keys, Carmel Helene & Tamar Davis)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffe32c58e063ef176c46309660e35bb3570f2dc89b760903999a377bffa0e5b9. Chain 2 (Bitcoin): anchored in block 959146 (2026-07-22T17:41:21Z), 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/QMRSZ2202571.
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 0x79ca63c2c0670fe21373aed12317fea9334fed0f8d0bf43b76d43115e9c001f7. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/QMRSZ2302065.
Murder By Numbers (feat. Armand Sabal-Lecco, Rusty Anderson, Amy Keys, Carmel Helene & Tamar Davis)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ee93f0f2924751b509f0eb3c0c7812156264f26b586c56ec2b9a5bf696856ca. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QMRSZ2202567.