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 0xf055bf7e0d61611eb9c317a22793bce3eabe63f2acc44108dc4cf1b7f0ca699e. Chain 2 (Bitcoin): anchored in block 953819 (2026-06-15T18:31:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fcdeadb2-4ddd-4155-8228-419eb7c3d114.json and https://artists.proofprofile.net/proofs/artist/fcdeadb2-4ddd-4155-8228-419eb7c3d114.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Prokofiev: Peter and the Wolf - Saint-Saëns: Carnival of the Animals
Saint-Saëns: Carnival of the Animals - Prokofiev: Peter and the Wolf
Saint-Saëns: Le carnaval des animaux, R 125: I. (b) Marche royale du lion
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 0xa49a611784bb833a61ace4c6f271fff7dd977074b8a57ca8a9da2a6ccff24136. 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/GBAYC8800980.
Saint-Saëns: Le carnaval des animaux, R 125: IV. Tortues
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8135e06451e9244a7160a869dca1017199e6509ec5455a379c276eaaaa5d21ce. 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/GBAYC8800983.
Saint-Saëns: Le carnaval des animaux, R 125: V. L'éléphant
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb434ab3d7b389225b11305a110d7762d8010a1aa0a0a84b65a3f006398b10543. 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/GBAYC8800984.
Saint-Saëns: Le carnaval des animaux, R 125: VI. Kangourous
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed9b8552466a8509fcffe5984d9724f84dedcb55681de803617551e338421fe1. 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/GBAYC8800985.
Saint-Saëns: Le carnaval des animaux, R 125: VII. Aquarium
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0e5c9ff0d92926148a7597e200adac64a8499f8bf12e02db04cc09c097d27f7. 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/GBAYC8800986.
Saint-Saëns: Le carnaval des animaux, R 125: VIII. Personnages à longues oreilles
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x708b0495463c87c23b0e9113e08e17d08631d689c64f2ee6d3e6ff924c5132ed. 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/GBAYC8800987.
Saint-Saëns: Le carnaval des animaux, R 125: IX. Le coucou au fond des bois
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x698c303f5a7c030ec5e26f37c2228a12c2d5a50c591ae9f26a33e9129e9bd982. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/GBAYC8800988.
Saint-Saëns: Le carnaval des animaux, R 125: XIII. Le cygne
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x437a42f26866c253a655e06cec56f4c161bcc824611a2f4f8d6000858e80f347. 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/GBAYC8800992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8bb36162facd830fa7bd970d937dd503eed53a082c9f91c38816e918a8fc1e5. 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/FRZ118603476.
Piano Concerto No. 2 in C Minor, Op. 18: II. Adagio sostenuto
Orchestre De La Société Des Concerts Du Conservatoire
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3caa7946bf1328e9a5aaa9cb8ebe84fd6e4482e240242059b00a77cb344ebb9. 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/FRZ111700468.
Le Carnaval des animaux, R. 125 "Carnival of the Animals": VII. Aquarium
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aa0401e394fccc4cc3eadfbc3293647177c215375ce677d31eb7d5f64503342. 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/GBAYC8806050.
Préludes, Op. 28: No. 15, Sostenuto in D-Flat Major "Raindrop"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x711310e3a3bdc4574916679af4962c7ea0ddf0579e9e0a32496abffc25878e7d. 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/GBAYC9101695.
Le Carnaval des animaux, R. 125 "Carnival of the Animals": XIII. The Swan
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe03e7eb7d87a85f227705068111a7a017f33a0a3f40f1074e041814cccc5a835. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/GBAYC8806056.
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
Tales of Beatrix Potter: The Tale of Squirrel Nutkin
Orchestra of the Royal Opera House, Covent Garden
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22e680b59d4729fd68075feeb49fbbcfb17b4ce400a0c355e8fb3ed39fe2e760. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/GBAYD9200171.
Divertimento No. 17 in D Major, K. 334/K. 320b: III. Menuetto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x908a5e23ea998286579abca14130b76b32fa2c78ec947c538f0f1676c9712570. 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/GBAYC8901079.
Harpsichord Concerto in F Minor, BWV 1056: II. Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2264fb76d6f26e299d45ac445e19bd08d8550d87c95763dd89739796068827b5. 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/GBAYC9201389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb22a160e9a4e523644b475511937640a77ca58d721311e4ac475314d1ea950c5. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-21T17:01:44Z), 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/GBAYC8301040.
Peer Gynt, Op. 23, Act III: Solveig's Song
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56c6e12606fd48b9612c9a1789f141dacd57b3044ff30e1087c2374e4dca30eb. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-21T17:09:38Z), 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/GBAYC8200243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bafb24714396abb102dd42e290881295ca20a7ead5e0718d8cb9502fd7e525a. 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/DEA809417300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83981c6b55f31b9825006a67552f2446d8e7a5097742ff824e391585987bceb6. 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/GBAYC9100183.
Romeo and Juliet, Op. 64, Act I: Balcony scene
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x637ed08954fd8f80d001627828e578a83ff1a4f367fd6c938c78904a65753575. 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/GBAYC8700394.
Relaxing Classics According to Saint-Saëns
Violin Concerto No. 3 in B Minor, Op. 61: II. Andantino quasi allegretto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa169414f47300677c0ab200e8c2e3333d717d44606d9ffbd2498b2ebea1ce684. 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/SEWDL9141710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x136a4349c4de624d10a9c205be1d37b71896eb7d1d060574bacf592b01cc9704. 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/GBFRL0900009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91ef1a8ee991a1be785d17a30589cd69925eec538d5b97dd2a41970147086e2b. 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/USHM81809825.