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 0x31eae7927aeb695dc3821af58288760ec9052062b2ca0d2126f661aee6f1142a. Chain 2 (Bitcoin): anchored in block 953730 (2026-06-15T02:47:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/937a6804-d3f4-4cc8-90e6-30c1d084b235.json and https://artists.proofprofile.net/proofs/artist/937a6804-d3f4-4cc8-90e6-30c1d084b235.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Durey Rediscovered: The Unpublished Song Manuscripts of Louis Durey
Beethoven: Symphony No. 9 in D Minor, Op. 125 "Choral" (Live)
From Rags to Riches: 100 Years of American Song (Live)
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 0x6e42e66e37fd35ab457fd84c716e8f3d4a7346fb5f322b408517131e0db463cd. 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/AU3SE2100491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd59165d468e6528ea852975040786505dcf2a37b58265929afc314b8eb13b7c8. 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/AU3SE2100496.
Do I Hear a Waltz?: Take the Moment (Live)
Jake Heggie: It's a Wonderful Life (Live)
Vanessa, Act I Scene 1: No, I cannot understand why… (Vanessa, Erika)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc57fe0f2f1b0be90255a7728333645e2244a02106e41ff95f27fc7a47a05de60. 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/GBLWD0414303.
Vanessa, Act I Scene 1: Yes, I believe I shall love you (Anatol, Vanessa)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ebef93589101e7ae6aca16e1f54fa18dfb1f6aeee9580f06ee5b772e03fb76a. 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/GBLWD0414307.
Vanessa, Act I Scene 2: And then? (Baroness, Erika)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bd863f5bca58da490ed79dc45435ebf27253fb3c2054cbf59871f745025569f. 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/GBLWD0414309.
Vanessa, Act I Scene 2: Outside this house the world has changed (Anatol, Erika)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a58c2bed635e61a947df084d2d8b87bf1da9f94c5c35499ca744a9be5ee0153. 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/GBLWD0414315.
Chabrier: Songs (Hyperion French Song Edition)
Puts: The Hours, Act 1: "Platters! - What’s That, Babe?" (Clarissa, Sally, Chorus) [Live]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7558ccbf6717211d43e5b1409573bef4afb9dfaa91d8353b240e8adb47ecf2f1. 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/USY3P2308132.
Puts: The Hours, Act 1: "There's the Scowl" (Virginia, Leonard, Chorus) [Live]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x716c592a5e2ad7a46fa2e6157dea434549251cc89b408a7584f28d63b0261f19. 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/USY3P2308135.
Puts: The Hours, Act 1: "Clarissa! - Barbara!" (Barbara, Clarissa, Chorus, Virginia, Leonard) [Live]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69a2e817ed5f2521595cbdf36dc6a16598381358ba8c1efd80554371c62ce849. 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/USY3P2308136.
Puts: The Hours, Act 1: "Richmond… She Opens the Curtains" (Virginia, Chorus, Man Under the Arch) [Live]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bce51f5be39498f12d8e4f37944c66ef8645480d4271fca5da08e4527766f9f. 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/USY3P2308137.
Puts: The Hours, Act 1: "Missus Dalloway Said She Would Buy the Flowers Herself" (Laura, Virginia, Chorus, Dan, Richie) [Live]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5604d8f64584d474cb500af023d383ab505aee3c6cf3dcf2e02d56184e719cb6. 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/USY3P2308138.
Puts: The Hours, Act 2: "It's Happened - I Thought I’d Be Overjoyed, Richard!" (Leonard, Clarissa, Chorus) [Live]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x282b4efbb1b0dd7a563da60455c9def2df93e2ac0c72c610acfae89dbcc3e7f3. 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/USY3P2308148.
Puts: The Hours, Act 2: "Ent(ha)da oikeîs en te ge" (Chorus, Angelica, Quentin, Julian, Virginia, Vanessa, Laura) [Live]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf58c0e19062f36d71de313034ca3d82bc84a0f9e9d849c1427214cd0f48a3988. 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/USY3P2308150.
Puts: The Hours, Act 2: "Richard! Get Down from There" (Clarissa, Richard) [Live]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebea9f92c1c085a22c9e4e672562b9615a4703043ca89be6ce928dd91581bfd7. 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/USY3P2308151.
Puts: The Hours, Act 2: "This Is My Partner, Sally" (Clarissa, Sally, Laura, Dan, Leonard) [Live]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x203219c7138caa4cea9d58756bce061049a171e84a76677bf178b4231728040b. 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/USY3P2308155.
Puts: The Hours, Act 2: "All Along?" (Clarissa, Laura, Virginia) [Live]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x959d157c1a82754a18fdc6cb82acbd272798edd31ade5d066be2ff69e7b7db76. 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/USY3P2308156.
Puts: The Hours, Act 2: "Louis? - Clarissa. Caught Me Smoking" (Clarissa, Louis, Chorus) [Live]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f2d5eee6dc2d75e6c7dd6188118ca40c4709096823cb0f92c19e03eff3f7d67. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/USY3P2308149.
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
Puts: The Hours, Act 2: "Happy My Birthday!" (Dan, Richie, Walter, Sally, Louis, Clarissa, Virginia, Leonard, Laura) [Live]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x906f642ad8fad0f5e1248e6ac64ee30127952afa7c962b21e96b6b4dc5e8363a. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/USY3P2308154.
The Most Happy Fella [All Star Studio Cast (Soundtrack from the Musical)]
Symphony No. 9 in D Minor, Op. 125: IV. Presto - Allegro molto assai - Andante maestoso - Allegro energico, sempre ben marcato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32d8b48d7f42387509ee950647b2f31a30049e7e5d13ad1da202969957c0625e. 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/ATEXZ1201045.