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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83941404670a22cf5ccbc8cb7c6c348d9e0ff930ee681fe014380de8f9129b21. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5e6228b3-003e-4069-b7aa-032364e2e0b6.json and https://artists.proofprofile.net/proofs/artist/5e6228b3-003e-4069-b7aa-032364e2e0b6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Wood & Wires: New Music for Recorder and Electronics
De la cour de Louis XIV à Shippagan! Chants traditionnels acadiens et airs de cour du XVIIe siècle
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d230f567390d7c02cb1b0c0374d83cab8db5d1b059de0cbb929b7cce13e11bf. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/CAJ722283701.
Concerto pour flûte à bec, cordes et continuo en do majeur, TWV 51:C1: I. Allegretto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19124cc07dea4fa1499a7dafb9ca949c796b5228170ea2efbde94c3232b0fcf6. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), 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/CAJ722078901.
Ouverture en sol majeur pour 2 hautbois, basson, cordes et basse continue TWV55 :G5: III. Rondeau
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea66462490979f943ade1761759bcb8e416baac3934b3f2c7ad646834a5523e9. 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/CAJ722078911.
Concerto pour flûte à bec soprano, cordes et basse continue en sol majeur, RV 443: I. [allegro]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc53bef06884799621d22786963f9d51627e00fe3bb83ffb4efefb6ce54fc03a1. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/CAJ721876001.
Concerto pour flûte à bec soprano, cordes et basse continue en sol majeur, RV 443: II. Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3ef0a3790eb9fa1e9b46fdb4669b6cbb8041b15553d3f21768a912e1116ed26. 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/CAJ721876002.
Concerto pour flûte à bec soprano, cordes et basse continue en sol majeur, RV 443: III. Allegro molto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd441e1a51668ddf2a301538fd4ffd143fbf9ec0048d1384ae19bbc1269a2d8f7. 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/CAJ721876003.
Concerto Pour Flûte À Bec Alto, Cordes Et Basse Continue En Sol Mineur, Op. 10 No. 2, "La Notte", RV 439: I. Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c8d82fdbbf97a3774316f26279dbb5c97d089821cd37aeb682ef8213d5f7271. 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/CAJ721876004.
Concerto Pour Flûte À Bec Alto, Cordes Et Basse Continue En Sol Mineur, Op. 10 No. 2, "La Notte", RV 439: II. Fantasmi : Presto – Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x961011e054a41177a795269e9d25d18df846239c3c0b34edf645aa8518681fc8. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/CAJ721876005.
Concerto Pour Flûte À Bec Alto, Cordes Et Basse Continue En Sol Mineur, Op. 10 No. 2, "La Notte", RV 439: III. Presto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5a4b2f0c3c3280f79335cf864d6cd069810e8611c3e11354e4ec2dab4a282ce. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/CAJ721876006.
Concerto Pour Flûte À Bec Alto, Cordes Et Basse Continue En Sol Mineur, Op. 10 No. 2, "La Notte", RV 439: IV. Il Sonno : Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8254c95a3cf7b49052108eaa3cef271bc111092fc608122b1ea2838c4486f245. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/CAJ721876007.
Concerto Pour Flûte À Bec Alto, Cordes Et Basse Continue En Sol Mineur, Op. 10 No. 2, "La Notte", RV 439: V. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ffd1b929cd425cff7ff262edd80870c888bf0610e0def6e80c576614787c224. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), 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/CAJ721876008.
Concerto pour flûte à bec soprano, cordes et basse continue en fa majeur, RV 312R: I. Allegro molto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa434aa070bf5de45f12aed5efa5f2d4e3344dafc7f0252d31e0ade4b728deef. 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/CAJ721876009.
Concerto pour flûte à bec soprano, cordes et basse continue en fa majeur, RV 312R: II. Larghetto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40c76ee35614264f9f280e16ec4308d0170bce34ccf92a0ad31b304e3ab3ec2a. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), 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/CAJ721876010.
Concerto pour flûte à bec soprano, cordes et basse continue en fa majeur, RV 312R: III. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9d589efca8158562e68e2cc90fddd9ce7d84f97b74b62479b32c0bb37a0ec4c. Chain 2 (Bitcoin): anchored in block 960210 (2026-07-30T05:21:45Z), 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/CAJ721876011.
Concerto pour flûte à bec alto, cordes et basse continue en do mineur, RV 441: I. Allegro non molto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x279a650c45d5db142944c256cc90fa4dc83afe678aec081c51a32a4e2edf80fe. 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/CAJ721876012.
Concerto pour flûte à bec alto, cordes et basse continue en do mineur, RV 441: II. Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c8823627a83be0954732dd2ad2c0db43ded08e1eedae2fd3b19fcd5878aa08b. 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/CAJ721876013.
Concerto pour flûte à bec alto, cordes et basse continue en do mineur, RV 441: III. [allegro]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdac3524d314ca98de19a26e7909e0bdf2da090d06b0ae6b8f19644316e7a0c43. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/CAJ721876014.
Concerto pour flûte à bec alto, cordes et basse continue en fa majeur, RV 442: I. Allegro ma non tanto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5155b632699d5411371efd78514ab605f0047256ba5df612ca4606e04628d929. Chain 2 (Bitcoin): anchored in block 960404 (2026-07-31T13:06:57Z), 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/CAJ721876015.
Concerto pour flûte à bec alto, cordes et basse continue en fa majeur, RV 442: II. Largo e cantabile
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x380a84d910b9b93ff4056c389753047422996a45d151feb121287ea053746364. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/CAJ721876016.
Concerto pour flûte à bec alto, cordes et basse continue en fa majeur, RV 442: III. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b6d1e0748ac465e0ed117e6ae4ba99c7547f5e013f8ea56642b01444eab9a12. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/CAJ721876017.
Concerto pour flûte à bec soprano, cordes et basse continue en mi mineur, RV 445: I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7b30faea471ac30abb19298b0b4c13f40ebff3cd5244cf4a694cde584836ec7. 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/CAJ721876018.
Concerto pour flûte à bec soprano, cordes et basse continue en mi mineur, RV 445: II. Larghetto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ca3fb9742c41e5caded6e5cef124dfadef84c68118fdc3db0f39377a5fe1bca. 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/CAJ721876019.
Concerto pour flûte à bec soprano, cordes et basse continue en mi mineur, RV 445: III. [allegro]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27703f24ca631ba1bf234f5a68f0306a78b2a8f919f7e05a56ce7bd1c478a869. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/CAJ721876020.
Concerto pour flûte à bec sopranino, cordes et basse continue en do majeur, RV 444: I. Allegro non molto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09e6fd3d80c6f71f9ae613e8cf75f1afc3a8d291877e1ea9088661f1ee3ca28b. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/CAJ721876021.
Concerto pour flûte à bec sopranino, cordes et basse continue en do majeur, RV 444: II. Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e644b1d60753cba9cd625f2464f2b715f5ad93193f0ca9c277776451200b9b5. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/CAJ721876022.
Concerto pour flûte à bec sopranino, cordes et basse continue en do majeur, RV 444: III. Allegro molto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8172c4ae98775c0b27f508add7cde910a7bb3e31a2620f15067e72b35a08cb5d. 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/CAJ721876023.
Sonate pour flûte à bec, basson et basse continue en la mineur, RV 86: I. Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2bf412aa77b59fa0ba474fa0c950afd343bc4c8bb65e37f091336b4636d0910. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/CAJ721775301.
Sonate pour flûte à bec, basson et basse continue en la mineur, RV 86: II. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58f51e692dba7f6166b3705d1d9bb6ce10b37b459bd074ad0525a97d92373635. 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/CAJ721775302.
Sonate pour flûte à bec, basson et basse continue en la mineur, RV 86: III. Largo cantabile
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe545af6916f3e60ca094dedf61215184b78c31c0e5a7d5ebab561caf45d50b26. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/CAJ721775303.
Sonate pour flûte à bec, basson et basse continue en la mineur, RV 86: IV. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ea1c573daceda849d581d1eb268e373db8cc66e24d8e7545b14ff59a6377910. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/CAJ721775304.
Sonate pour flûte à bec et basse continue en sol majeur, Op. 13 No. 4, RV 59: I. Preludio (Largo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d4748d01deadc96d757fc0e3ce4b3b28a694e3dd11f6a52fd67a15d046f0ac7. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/CAJ721775305.
Sonate pour flûte à bec et basse continue en sol majeur, Op. 13 No. 4, RV 59: II. Allegro Ma non presto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9aa0318734bba4cdf174c1cde55ba628a1eb9654864663b6289e768928363f6. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/CAJ721775306.
Sonate pour flûte à bec et basse continue en sol majeur, Op. 13 No. 4, RV 59: III. Pastorale
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13c891f5e48f06dac58eddc81abde9b995126e4de8e4b61890ca61c162ba273f. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/CAJ721775307.
Sonate pour flûte à bec et basse continue en sol majeur, Op. 13 No. 4, RV 59: IV. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3ed393dba041ec99cfd0d388adc4381b14f543f851c6327d7f833695b5e3797. 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/CAJ721775308.