1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x1e449da38a59976abd4d321ab491b90af4b9a5f64d3245a99b32c6e14fb8d8b3. Chain 2 (Bitcoin): anchored in block 954615 (2026-06-20T22:44:50Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c65211ea-3ec5-45e5-85a8-efced5f860f1.json and https://artists.proofprofile.net/proofs/artist/c65211ea-3ec5-45e5-85a8-efced5f860f1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Twelfth Night, Act I Scene 1: If Music Be The Food Of Love, Play On... (Shakespeare)
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 → block OTSBitcoinBlock must exist at that height 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 0xd6161fe9c0d6b5d2657f5d73c95dfb76237e8060c72c7b51bf53bb095ef2d396. 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/HKI199201601.
Romeo And Juliet, Act II Scene 2: But, Soft! What Light Through Yonder Window Breaks? (Shakespeare)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf22c1e1817d12e87ec2e5338784525e5ba8f1373ac19c96f481e4bffa02c6b28. 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/HKI199201602.
Shall I Compare Thee To A Summer's Day?, "Sonnet XVIII" (Shakespeare)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2db3fe452ee40bc55810e030dd6033844e2056ca49dc7e5cad7f7e5a067b0090. 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/HKI199201603.
Doctor Faustus: The Face That Launched A Thousand Ships (Christopher Marlowe)
The Passionate Shepherd To His Love (Christopher Marlowe)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3529efc64b422f47fa038b421b25059d35c99f425d631632e1c8afb0f1355d43. 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/HKI199201605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e783b821b8d51d6c9b90d44a1c683d78cbff34df0309e76b6c7c1335c531cb4. 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/HKI199201607.
La Boheme: La Boheme, Act I: Che Gelida Manina
David Copperfield: 'I Don't Think I Had Any Definite Idea...' (Charles Dickens)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fe159fec0b642475b8bba67f5f9157455c01f1e7a93c88a098aba3709c48485. 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/HKI199201609.
Persuasion: 'I Have Loved None But You...' (Jane Austen)
Jane Eyre: 'I Have For The First Time Found What I Can Truly Love...' (Charlotte Bronte)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc356fdb449c0f8f2a4a35fb33e1657c4e36b5af2b96912bce9cde00ea5a4647d. 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/HKI199201611.
Far From The Madding Crowd: 'Such Women As You A Hundred Men Always Covet' (Thomas Hardy)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe23fb6ec95fdc1f40d96a7d404aaf8a349607b0e090aada67357bcf79db78587. 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/HKI199201613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa79da779e10d4d62a1cb707c161180ad378469cf48f5c5524a422515d00633f1. 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/HKI199201614.
Tosca: Tosca, Act III: E Lucevan Le Stelle
He Wishes For The Cloths Of Heaven (W.B. Yeats)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e67614e91004f53c672210e740c9124d73f5c7dccbd00b27a631a6af03f5ca9. 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/HKI199201616.
Confessions: 'Friendship, Confidence, Intimacy, Sympathy Of Soul...' (Jean-Jacques Rousseau)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6110f2726d21b6fb3334f16b75ae5934329821b80186a767b3cade4293ead769. 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/HKI199201618.
Letter From Napoleon Bonaparte To Josephine
Letters From Karl Marx To His Wife Jenny
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x567acabded6d60683398106d78aa192d84b008b59fb0bbcf8c61d56efcbc401b. 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/HKI199201620.
Letter From Gustave Flaubert To Louise Colet
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61f3c1a5129c1b24ed5669d22ac62d2cb7ff08d93616ef2c24c836815dc090cd. 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/HKI199201622.
Letter From Rupert Brooke To Katherine Cox
Les Pecheurs De Perles (The Pearl Fishers): Les Pecheurs De Perles (The Pearl Fishers), Act 1: Au Fond Du Temple Saint
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2f0f0fa066cbfd565d1ddc2740f5f2451b9003999aa529736fe2d467b8737b4. 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/HKI199201625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6547c692f8f6cd4c9007b418ce66453498aa2cc94e4eb5b4806f3870fb3f6559. 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/HKI199201626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53d49c2ec2136691ce677c8ab7b5f72e44c5264718613392f6b5b5af9f870632. 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/HKI199201627.
Au fond du temple saint (Temple Duet) (Act I)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1209f3f5e33add30605246847967a833048ee73013093a78e59e234d88a2b07d. 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/GBGRH0400215.
Les pêcheurs de perles, WD 13, Act 1: "Au fond du temple saint"
Bizet, Cormon, Carre: Les pêcheurs de perles / Act 1 - Au fond du temple saint - Live At Central Park, New York / 2011
Concerto: One Night In Central Park (Bonus Track Version)
Les pêcheurs de perles, WD 13, Act 2: "Me voilà seule dans la nuit...Comme autrefois, dans la nuit sombre"
Carmen: Votre Toast Je Peux Vous Rendre ('Toreador's Song') Pt. 1
Karaoke Opera: Sixteen Favourite Arias and Duets
The Pearlfishers: Au Fond Du Temple Saint Pt. 1
The Pearlfishers: Au Fond Du Temple Saint Pt. 2
The Pearlfishers: Au Fond Du Temple Saint Pt. 3
Samson & Deliah: Mon coeur S'Ouvre a Ta Voix (Soflty Awakes My Heart) Pt. 1
Tales Of Hoffman: Belle Nuit, O Nuit D'amour (Barcarolle) Pt. 1
Tales Of Hoffman: Belle Nuit, O Nuit D'amour (Barcarolle) Pt. 2
Tales Of Hoffman: Belle Nuit, O Nuit D'amour (Barcarolle) Pt. 3
Madama Butterfly: Un Bel Di Vedremo (One Fine Day) Pt. 1
Madama Butterfly: Un Bel Di Vedremo (One Fine Day) Pt. 2
Il Barbiere di siviglia: Largo Al Factotum (The Barber Of Seville) Pt. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2c459463264a04456d5246cddc669b7f896936bf18119be116eedac576ae283. 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/GBLGL1252289.
La Traviata: Brindisi (Drinking Song) Pt. 1
La Boheme: Che Gelida Manina (Your Tiny Hand Is Frozen) Pt. 1
La Boheme: Quando M'en Vo (Musetta's Waltz Song) Pt. 1