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 0xb6efe3537fba2aba4ed4360f7cf94db8bf15dd00205f60961d8a600adff2169e. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8de39a51-66ba-4eac-b4af-ac24b92eb365.json and https://artists.proofprofile.net/proofs/artist/8de39a51-66ba-4eac-b4af-ac24b92eb365.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Elgar: Serenade For Strings/Suite From "A Spanish Lady", etc.
Serenade for Strings, Op. 20: II. Larghetto
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 0xf9e10379fb4eda09f5cf01d780285e423fbbd99da740cbd68c989f4123757d12. 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/DEP629600544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2b299a90c41b035892e2486f7e96aeda41b2582af8185ee60b1366ef1092499. 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/DEP629600552.
Le carnaval des animaux, R. 125: No. 13, Le Cygne
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25514dff7555f90fd36df8f98e691fa72ff047ca8afd617c548672ec238b2719. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/DEP629601185.
See Emily Play (Arr. for Voice, Saxophone and Orchestra by David le Page)
Comptine d’un autre été, l'après-Midi - Arr. for Violin, Harp & Orchestra by David Le Page
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6677d0007960c22f4e014fcc835dadec319b6479392f7d2b8e86a1cf1b19271. 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/GBLLH2169409.
An Ending (Ascent) - Arr. for Violin, Harp & Orchestra by David Le Page
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa396d783e705d345d7d375291271073e0ccf288d0b6b8133ed0e84ce24ba5dda. 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/GBLLH2169416.
Thea Musgrave: Chamber Music for Clarinet, Vol. 1 – Pierrot Dreaming
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd020b74f82116d7d395a925351a003400b176529f3ef96f890b4e8ecba2de13a. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-21T17:31:49Z), 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/GBLLH2183903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93547e05f58f76f09b189dd0413f24f050772f2aee82967ff4e36a679a1a3346. Chain 2 (Bitcoin): anchored in block 957065 (2026-07-07T16:43:21Z), 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/GBLLH2183907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb513e97201e0d4f33c4cbfd7ca6ebf01e42e35144be240771c604297a7c20f58. 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/GBLLH2183908.
Dies Natalis, Op. 8 - Arr. for orchestra and violin by David le Page
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x065a89a11e326ee55a666f5785f1b63418473146259448a14a5a07b4c411fa46. 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/GBLLH2166225.
The Reinvention of Harmony and Imagination
Saint-Saens: Carnival Of The Animals, Wedding Cake Polka
Le carnaval des animaux, R. 125: No. 7, Aquarium
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36e028b3a127f71aff6febcc84f9f1ec30fdfc85770264fa85d5e0f46bdfbbb9. 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/DEP629601179.
Violin Concerto in F Minor, RV 297, “L'inverno”: II. Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54f02579d427b1a2e2e1aac02d08ad3a455b3bd8a91b940be93fba7e30a25191. 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/GBLLH2478919.
Violin Concerto in G Minor, RV 315, "L'estate": III. Presto
Dies Natalis, Op. 8 (Arr. for Orchestra and Violin by David le Page)
The Yellow Cake Review: I. Farewell to Stromness (Arr. for Violin & Orchestra by Rosemary Furniss)
The Four Seasons Recomposed: II. Spring I
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x227be7aa0381de6182bfefa21fc0c0a6fa27b143e10bb99d58b9870d716192ea. 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/GBLLH2373202.
Prelude in B Minor, BWV 855a (Arr. For Violin and Orchestra by David Le Page and Alexander Siloti)
Prelude in B Minor, BWV 855a - Arr. for violin and orchestra by David Le Page and Alexander Siloti
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b795bb2f30b8d12f7d5322ba4647bcbe4740f9e6f17c76fde90b1c00a81dd1a. 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/GBLLH2373201.
Charles Trenet: La Mer (Arr. for Orchestra by David Le Page)
Romanian Folk Dances, Sz. 56 - Arr. for String Orchestra by Arthur Wilner
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6dd6a97a2d4592744df5278ad9d69dea413ac1b5ee5f396a4a53ab1783948ee. 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/GBLLH2284005.
Vaughan Williams: Five Variants of Dives and Lazarus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa433f7242e42f44d2b2f6d4fdcd7807ff13c509d7642de0454f331e55f7d8923. 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/GBLLH2284003.
New Dawn Fades (Arr. for Violin & Orchestra by David Le Page)
Goldberg Variations, BWV 988: Aria (Arr. for String Trio)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x831268c27f766e68ab9b900d780649893f5181c2a68fa4005cb990abcd742bbd. 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/GBLLH2166208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1111e5d886da6321a9a83911de76ce48a8bcbd5414fe94b1709133393ffea06c. 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/GBLLH2169401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8dbdedb6764abe05d12df560f3bd64c8e581bd0075c10afe861ac74828ed4b6. 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/GBLLH2169406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27400280c84c028a69c6b85b5c63222d66c0694d90945d8fa65700c12029a6b0. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/GBLLH2169408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6677d0007960c22f4e014fcc835dadec319b6479392f7d2b8e86a1cf1b19271. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBLLH2169409.
New Dawn Fades - Arr. for Violin & Orchestra by David Le Page
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9e09f072f1ee879160a976df02cc4db645a34a16c0f7395f4f0c2d29950c594. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/GBLLH2169411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc79def514b4916bd7f4a9d6253a904d6ea4668a5d8635cbaddacd595a19329ec. 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/GBLLH2169412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa396d783e705d345d7d375291271073e0ccf288d0b6b8133ed0e84ce24ba5dda. 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/GBLLH2169416.
Les Barricades Mysterieuses - Arr. David le Page
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfce2c4a5655db22f511ae201befe6c64242d86b2fb5d16de74b19d8742a73fac. 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/GBLLH2166203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d8d6cb74f2defd4e5a9d426af5e726ca541b0822ecc31f6091620c51bf0f607. 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/GBLLH2166206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a010485bf00b8f5cb78c99ee65358c0bc474ea1aeef0be533d428df214a2db8. 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/GBLLH2166207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x831268c27f766e68ab9b900d780649893f5181c2a68fa4005cb990abcd742bbd. 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/GBLLH2166208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc247f40f32cc4a5705ff14a24b63c37e4e8db832b4a47382662a871036afc026. 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/GBLLH2166211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf653cd3f72e61482135156897bc045d01f09483970f6cddeb4b5896682b8db47. 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/GBLLH2166213.
Prelude in B Minor, BWV 855a - Arr. for Violin and Orchestra by David Le Page and Alexander Siloti
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b795bb2f30b8d12f7d5322ba4647bcbe4740f9e6f17c76fde90b1c00a81dd1a. 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/GBLLH2373201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x227be7aa0381de6182bfefa21fc0c0a6fa27b143e10bb99d58b9870d716192ea. 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/GBLLH2373202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x337529b8d0c3d0449bbe055b0a15684b907b75fd8f482670e30f84be965c651f. 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/GBLLH2373203.
Peaches En Regalia - Arr. for Violin and Orchestra by Ali. N. Askin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a3ddd40dabf2d304955aea8e9eba1e3b9f9851967fcaff0f6b11ea1cb1087d2. 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/GBLLH2373204.
Nana - Arr. for Drums, Bass Guitar and Orchestra by David Le Page
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9ad9077bf17ea780bc00c39820f1ee9d15a678838fcd31b9889fd801f51aa1b. 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/GBLLH2373205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56d3fc4057fef31f1a7b499e9415e57849b58a3ef49b43ec29859c9b67a4c2b4. 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/GBLLH2373206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x104bb3167a5999c978d532e4a3fe223d37529174d7d2ba441ca1624b27efcb8f. 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/GBLLH2373207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34d328b81b5b2697559331dadd451e2718a4774678759f46a7762b19809ebf40. 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/GBLLH2373211.
The Birds in the Spring (Arr. for Orchestra and Voice by Jackie Oates & David Le Page)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x685c8ce952ba03dea5af4eee3d092391aff4b7f1da6acbf34ff085d0197cc891. 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/GBLLH2478901.