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 0x6358e0df4b9b0f44846c56276a9c75bd403213cd8e7c8b7b0bb972102d45e14b. Chain 2 (Bitcoin): anchored in block 954502 (2026-06-20T05:07:36Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9c79d0e7-41d7-492d-af17-ce40e2c7fc40.json and https://artists.proofprofile.net/proofs/artist/9c79d0e7-41d7-492d-af17-ce40e2c7fc40.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Dido and Aeneas, Z. 626, Act I: Shake the cloud - Banish Sorrow
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 0x87a5ad37323983f9334840c9d3446219c1d8bd6f6666909e9bb217e42671f863. 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/NLE422303202.
Dido and Aeneas, Z. 626, Act I: Ah! Belinda
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc60079920ba4cca2e691c32329a6e0fd4deb1e87592a32c6ca9ab3be6cf3b85b. 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/NLE422303203.
Dido and Aeneas, Z. 626, Act I: Fear no danger - See, your royal guest appears
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6986fb2735cc02ae390bd1a9c387b6b2d25a3fdc51aef5f5ab560d3bf42aaa56. 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/NLE422303205.
Dido and Aeneas, Z. 626, Act I: Cupid only throws the dart - If not for mine for Empire's sake - Persue thy conquest Love
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc3f85671468041cfc741caed0c7655af22a9f6cff7abbe897ca13191d5ea205. 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/NLE422303206.
Dido and Aeneas, Z. 626, Act I: To the hills and the vales - The Triumphing Dance
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb382cc720c04350258338d65edf520a99c74594f3ebefcfbffb51727f912669a. 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/NLE422303207.
Dido and Aeneas, Z. 626, Act II: Prelude for the Witches
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bbe8862174f4b8e519e4e088dea99a447b77fbe6733326a88ddf8f2a6efea0b. 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/NLE422303208.
Dido and Aeneas, Z. 626, Act II: The queen of Carthage - Ho, Ho, Ho
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b4abf1b2cef06bc5da3ae6e9bebf3c3ee346f585f11b5eb32019c8ed2da7cd8. 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/NLE422303210.
Dido and Aeneas, Z. 626, Act II: The Grove - Thanks to these lonesome vales
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x073a25c3b10a7fb73412f0a66b4e75bc9cab94a522aabe6e8fcbe00e608cd882. 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/NLE422303213.
Dido and Aeneas, Z. 626, Act III: See, See the flags - Our next motion - Destruction's our delight
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf158743d50a821889b9877a3b1f5175650b9a6a0185f1263f835fe60e0663c78. 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/NLE422303218.
Dido and Aeneas, Z. 626, Act III: When I am laid
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29eac5a288e7dde706c386a60a805059c7c907b082f2b4c68c1abece5ac41eb6. 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/NLE422303222.
Dido and Aeneas, Z. 626, Act III: With drooping wings
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68cff0f70d77f3f5fd796e2e65b6b5eca0c2ca29872374a66e3c455f0c5c4686. 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/NLE422303223.
Dido and Aeneas, Z. 626, Act I: Grief increases by concealing - When Monarchs unite - When could so much virtue spring
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6580793e06a86e1d4637a1c7165c8da513aaeb0615454544abbd9517da77901a. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/NLE422303204.
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
Dido and Aeneas, Z. 626, Act II: Behold, apon my bending spear - The skies are coloured - Haste haste to town
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cd08a2e9dfb59328e6dd1e19296a80f565a5e9fd8370b49ac5d7319bbd9f777. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/NLE422303215.
Dido and Aeneas, Z. 626, Act III: Your counsel all is urged in vain - Great minds
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45511731ad34df4a3ba88008e0dacd3ea52247a1774b0846c1fc132e56877150. Chain 2 (Bitcoin): anchored in block 960241 (2026-07-30T09:58:01Z), 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/NLE422303220.
Il matrimonio segreto, Act I: Cara, non dubitar (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e349e8052fcecb14b9ceb335d7be7e6055a4cb70411dc821a9246c9af9abab3. 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/DEB201629502.