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 0x10cc23a3aec50606a9c6d98ef1688e68b8273a9b4c3636711e22aa681e092cad. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/96c12cc9-6c1f-4a12-8590-0aff3331806b.json and https://artists.proofprofile.net/proofs/artist/96c12cc9-6c1f-4a12-8590-0aff3331806b.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 0xbf0d8c56d05bba30e1971bf8374fc1d69f5f796da35c3bf60699c3b5a4486d83. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/JPZ921013300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x807a97f013a3b3d042bf55fc895f40df2bcac464907bc34c88ae568a77e7b9ca. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/JPZ921013301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c313ed79813752f60488681042148dc9282eb3b8c9f1a0d738b260b5ebb1840. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/JPZ921013302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8eeb6241367d8d97d3f37751224e3f4093837a945a72b0c292298558f64698ca. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/JPZ921013304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ae6e21810deff7f3ac1e39575b4dfcbb687f2e198b689055dd3136a0c3acde9. 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/JPZ921013305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5ea884e704730ae9f6bc07815ef846f7f03c424122590104103b8eec94c110f. 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/JPZ921013306.
SOCOPOGOGO (go go EGG Mix) remixed by Plus-Tech Squeeze Box
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7128578cebb0f800ccedd5dfa2704d352f77dbc9d1893ac5415d3697ebe9a514. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/JPZ921013307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa210407187933765b7b4947a921a15acfa81584482be23e854564d04a9e8c999. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/JPA960591526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaec97f2bbc7badf389cdc5f342938c4de7ffd794961f3a3d81e5f7391b7f114. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/JPA960591528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdaf7607e4d42bacff9618c7879af45edb0afd2faa172b6e9100d9370a42b5c1. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:32:56Z), 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/JPA960591529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58f2beff2bd3c2f3a90330c83f4d1a86935222386312037d4a30da4268caabe7. 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/JPA960591530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x986edc27edf56f846970db83ea207b8422499922a80d4b54e9ae8009352d6587. 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/JPA960591531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb440926ddb1194082aa433ce201b1c74a3a2045fcafdd9153d15749686b8076c. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/JPA960591527.
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 0x65503a74cb7f992f59d944c36e107b4bf941df312076c2e8df164cc549421638. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/JPA960591532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3aef10298eb40db46de3f648611e5a83b1be2c67d75d83495d66f75bb6af35d9. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/JPA960591533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40b191c2bd70e67cd00451e5ff50f7dc316fe8f9e5295fa8493508db952bfef6. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/JPI800200141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c60f39eee33e3bc996a9c41b08946355af1a270632e6e73eac153bfa2f4e1b9. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/JPI800200142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf191dd240ba5860202d355b60c67ed20fb8b231cd7fe10f43a75f1e2fceee2cb. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/JPI800200134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7d80adf1bc761a538b83e66f832ec763777eb0e9dbb194f70e716de344b1b09. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/JPI800200143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b91a869914f8b3206d9bcb5db45923b704955ea5c188776ca3c2ea75a1c1145. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/JPI800200144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc237ba69273bf34f0d0ea1f17d2a08c2f61ed793468e6a0bb818f3d6ccbe094. 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/JPI800200145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d635be052b80313820bc82040a0bebf1d0c6274dfadae80bba2174ebda29e3b. 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/JPI800200146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x575daaa34d93fffaaea2b6c40a0906411d8cb1c79624176c7714f624fad2b46c. 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/JPI800200147.