Martin Peerson (or Pearson, Pierson, Peereson) (between 1571 and 1573 – December 1650 or January 1651 and buried 16 January 1651) was an English composer, organist and virginalist. Despite Roman Catho
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 0x871a3249146e5a81e0f21c6c01dbc1039969d77e38aa136ac0eb829338556944. Chain 2 (Bitcoin): anchored in block 954728 (2026-06-21T18:08:38Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f7e06e86-86e4-429c-a999-4acdacad46c8.json and https://artists.proofprofile.net/proofs/artist/f7e06e86-86e4-429c-a999-4acdacad46c8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x004d93f8545cc9f4e95caf1542c0cd6024ee3ff1ca95b4aababd29dd0bbed2a6. 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/GBLGL0810031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd627532481bed5a8cddfb66497737e3fdf8897683e5a877c570778121b8d2826. 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/GBLGL0810053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0604014f598293aa9179153d3bda092fb9bd214779527bcac4756af797fa0546. 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/GBLLH2168006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe2921b288e0d386b3b00f6eb1defcc6d28749ac3775d5da6b60579d3f6b347b. 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/QZ93K1800014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f5e73237d0e2ca96e2b05cc783e57e5d3bc3a28e2360573896662c9edb1c913. 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/QZ93K1800016.
Pavan and Galliards No. 2 in A Minor, MB 15: I. Pavan, the Earl of Salisbury
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53ab21286f70acfe6c186d854649bff816176fd403e2b0b4185569a3b358a66c. 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/QZ93K1800022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49e2f0e4ca4eb779e2f1832c501c9f7c7d647eae8f0705966b6171236ae67adf. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QZ93K1800024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf70ff3e06b3d3e56024bf8efad802638d250a9fb7071384667b070f04242a2db. 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/QZ93K1800026.
Martin Elliott Conducts: Private Musicke
Martin Peerson: Classic Hymn & Christian Song
Peerson: "Private Musicke" Motets, Anthems and Airs
English Virginal Music of the 17th Century
Joculatores Upsalienses: Four Seasons (The)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23bc55c4c6ff694306f347c6168d139663857a6c21917218679eced7291c5673. 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/SEAEA9075100.
Rey aquien Reyes adoran (Cancionero de Upsala, 1556): Rey aquien Reyes adoran [Cancionero de Upsala, 1556]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb81cab0a719c3744149b8ef67a2a5de30f24fd4ebe53ce6f1526c08d365dec6e. 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/SEAEA9075310.
Mannerism, Organ Music from 1550 to 1650
Tres Siglos de Música Europea para Clave (Three Centuries of European Music for Harpsichord)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16908ad12c76b1516f88eb001144b8230727264c6090a518195b6b1ff0578dea. 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/ESAAI0195906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c630dee40080c416d677e223d91a4dde4eef684673148cf0cffbe3bbe4ee242. 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/GBLLH1333803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5b2e3c5365c052843a39d04dd596ac395f403a20fb37be964c05e03a0cf7ff5. 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/GBLLH1333807.
The Battle - Organ Music from The Gothic Period, Renaissance and Early Baroque
Piano Sonata No. 11 in A Major, K. 331: III. Alla turca: Allegretto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13fe65a9e9d77024a5d20ae14f24fafbd75fa5049d0e9f175fcdcb1db19a94a1. 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/QMFME1447209.
Gibbons: Hosanna to the Son of David, a 6
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3dfd3d5350454736d8339fbef03322dc666d363a934cd1a54c19c3bb1fe5ba8. 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/GBAYC9104463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea7d0752d5f515408f273210456ee48795c880e8d65e8cbad84f257ca62086c4. 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/GBAYD9100312.
A Collection of the Sacred Compositions: No. 15, This Is the Record of John
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x960d3f964300736600e042d546a398024eea81bf7c90d2d910bbe794d847e26f. 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/GBAJX9004601.
Sullivan: It Came Upon the Midnight Clear (arr. David Willcocks)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x928ba6101fd6219b65c49e27a0d4c9160de08955fdacb223d43b4f722886625f. 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/GBAYC9104476.
Sophie Yates plays Elizabethan Virginals Music
The Fitzwilliam Virginal Book, 297 Pieces for Keyboard, Vol. 4 (Nos. 170 - 240)
Music from the Fitzwilliam Virginal Book, Vol. 2
O Poore Distracted World!: English Songs & Anthems
Piano Music For Students: Associated Board Piano Examination, Grades 1-4