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 0x4dbc8a5445424665ff19ea49e98e3785be75c6ffb3927339bad8a9ca894ee910. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8d572b31-c01b-4995-a699-624798296169.json and https://artists.proofprofile.net/proofs/artist/8d572b31-c01b-4995-a699-624798296169.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Short Communion Service in the Phrygian Mode: I. Kyrie
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 0x1df30c29a9af263410942e841536a4a5d515e46ccfb7603765010e4ab7787b74. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBXUX0903009 — a six-check JSON result.
Short Communion Service in the Phrygian Mode: III. Sanctus - IV. Benedictus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a9491f00d535458d99c1d917d26b8974201d57e8d5a54051a6e5406c779981f. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBXUX0903011 — a six-check JSON result.
Short Communion Service in the Phrygian Mode: V. Agnus Dei
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b82d679505f2d2ba378fa511822e521f053a4a89fe244839d0ea91d2f57a3f4. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBXUX0903012 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bc568fb25139a3a123d50285937e7f0864b4817a665e3fe81502b5eff940f84. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBXUX0903014 — a six-check JSON result.
Communion Service in F Major: III. Sanctus - IV. Benedictus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f57e92f430997fba8a5b70e615b67b6e1f3ced4ec72060c9b87a9b1d8b8dd2c. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBXUX0903015 — a six-check JSON result.
Communion Service in F Major: V. Agnus Dei
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79338adbf45f08d098983c74c4ab908bb6c5645b3ae2206d50c494bb63f901e5. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBXUX0903016 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0e9a06fea5438da715c1e5c38fd0be9667218c6f1e68ddbcca1caabcac7b358. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBXUX0903017 — a six-check JSON result.
The Mass of the Quiet Hour: III. Sanctus - IV. Benedictus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9afeabe7a9562ccd9eccc2f9c1b2b747d0669de36ae12368c2be0007bdfedcf6. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBXUX0903019 — a six-check JSON result.
The Mass of the Quiet Hour: V. Agnus Dei
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbbd85b0c7d36d23939df23400d0a1f118f09daf09d69f462571b060ae4c7aa2. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBXUX0903020 — a six-check JSON result.
The Complete New English Hymnal, Vol. 11
Monkland "Let Us, with a Gladsome Mind" (After Freylinghausen's Fahre fort) [Arr. J.B. Wilkes for Choir & Organ]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd87180f2c7389d1b927025565d2f3d5707aafbbe320a407bcca1924d4dd920eb. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBXUX0871124 — a six-check JSON result.
Follow the Star: Carols for Advent, Christmas and Epiphany
The Complete Psalms of David, Series 2 Vol. 7
The Complete Psalms of David, Series 2, Volume 7
Psalm 92 "It Is a Good Thing to Give Thanks unto the Lord"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc7b7a4b563eefd713b041ea2a258183b7a84b6c5f6057675cfce11ae3308d09. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBXUX1412004 — a six-check JSON result.
Psalm 93 "The Lord Is King, and Hath Put on Glorious Apparel"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x257061bb04bdabbb2692a53fae10530e91080bfff35917dd364f6c76f0a82caa. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBXUX1412005 — a six-check JSON result.
Psalm 95 "O Come, Let Us Sing unto the Lord"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x209dc20cf260500ff7e9b1e6ed8dcbe3e7a4ff0cd06eae8f723aee5df6b5dde5. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBXUX1412007 — a six-check JSON result.
Psalm 96 "O Sing unto the Lord a New Song"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bcb610f52dd472ffdbf587de97abc72c8ce690634ece42acc1f3fa058544199. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBXUX1412008 — a six-check JSON result.
Psalm 97 "The Lord Is King, the Earth May Be Glad Thereof"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d44016dd4950228807457236877724d0e6460cdcbc8d27d10d2854d02d26871. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBXUX1412009 — a six-check JSON result.
Psalm 99 "The Lord Is King, Be the People Never so Impatient"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a2159a4c52cb7dfc279a64fcdee7602cdf736ae0073ce6dd6a3117d524a64f8. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBXUX1412011 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74f787dee360fea8994637f7037a6bf48df034b5e46caec35ce749a78a23ae9e. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBXUX1412015 — a six-check JSON result.