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 0x1ec7be3c31db8ca8569aa59c76480185cdf56a713e44e944d028703481cf8569. 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/db6fe6a0-973a-471e-a990-8fd3a81e7ace.json and https://artists.proofprofile.net/proofs/artist/db6fe6a0-973a-471e-a990-8fd3a81e7ace.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Gregorian Chants - Traditional Latin Liturgy
Gregorian Chant Choir - Sacred Voices Of Faith
Gregorian Chants - Sacred Religious Music
Gregorian Chant - Monastic Voices Of Prayer
Gregorian Chanting - Ancient Church Choir
Gregorian Chants for Angelic Guidance and Protection
Gregorian Chant Sleep Music for Spiritual Healing and Inner Peace
Missa de Angelis - E Canti Dell' anno Liturgico: A Solis Ortus Cardine
Collana Diretta da Bonifacio G. Baroffio
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 0x5e72528563e34d6b701e254467b86d71515c1346d589724d4072d62e4ae3e8c5. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/SEWDL0577001.
Missa De Angelis - E Canti Dell' Anno Liturgico: Descendit De Caelis
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70fb96214a67de503159c712f1c9985b11072d5fb4741207cba60ec5e6cc84a6. 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/SEWDL0577002.
Missa De Angelis - E Canti Dell' Anno Liturgico: O Beata Infantia
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee5c1394981e4edde1333bff2f5862410cf26cf67f402e4e0f30a3bff0a8e885. 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/SEWDL0577003.
Missa De Angelis - E Canti Dell' Anno Liturgico: Summe Sacerdos - Gloria
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80bfef8e09eae09517c312fa894125e1195f43c65c2d289e119923f9e9b43230. 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/SEWDL0577005.
Missa De Angelis - E Canti Dell' Anno Liturgico: Organicis Canamus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a65f96925c81c819988db56d40f4ab00cf463f1f458bb5ea7f7d496ec7e4a32. 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/SEWDL0577007.
Missa De Angelis - E Canti Dell' Anno Liturgico: Ex Ore Infantium
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e828932d464d5e2d88bc232fce3cad6106ab7130a204216a5a5c53e054f6927. 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/SEWDL0577009.
Missa de Angelis - E Canti Dell' anno Liturgico: Vox in Rama
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48ebbac476d7aaf0b16c2588fc6975e9e01f1509e91c01572cbb474e2e2a017f. 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/SEWDL0577010.
Missa De Angelis - E Canti Dell' Anno Liturgico: Alleluia - Multipharie
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x844cc5d76528546ddb7c6c8db172f770fb61cddb25ee7395bfd5f727f702ae85. 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/SEWDL0577011.
Missa De Angelis - E Canti Dell' Anno Liturgico: Laetabandus - Gaudete Vos Fideles
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc643bd518611b5ed74ade7da9c70b14fb554d174396bd8d39ec7dec1c1bae4d. 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/SEWDL0577012.
In Paradisum - Liturgia Dei Defunti E Dei Santi: Clamaverunt Iusti
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b1059fe1713d3f97842d02b7839fb6c44cf6ae850288cea93cf03f1491ef0a0. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), 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/SEWDL0577114.
In Paradisum - Liturgia Dei Defunti E Dei Santi: Requiem Aeternam
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92fdd1145dedd5b05cf5480991df3e58d3c02f8de4f954e6fcf0f46c422694c6. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/SEWDL0577101.
In Paradisum - Liturgia dei defunti e dei santi: Dies irae
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4889a95ee80d1a44744bd0c0eba152bea684a32ed0d363b6a9859359e6985f4. 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/SEWDL0577104.
In Paradisum - Liturgia Dei Defunti E Dei Santi: De Profundis
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1c22c547b93c6411382237e349b79ca9b6d6613b1000427117446384fc7ec86. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEWDL0577103.
In Paradisum - Liturgia Dei Defunti E Dei Santi: Lux Aeterna
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11e3b481d05094ec0cae42c66f5df0bb2b226cd09c804d1a04d34f6f2fa9980d. Chain 2 (Bitcoin): anchored in block 957056 (2026-07-21T23:24:25Z), 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/SEWDL0577107.
In Paradisum - Liturgia Dei Defunti E Dei Santi: Gaudeamus Sanctorum Omnium
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6256b3056cda587e4203f84d5b7260499a56327133ed032cc9845112ffdb2a02. 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/SEWDL0577109.
In Paradisum - Liturgia Dei Defunti E Dei Santi: Mihi Autem Nimis
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5df4d59a1ddbf50b7b94f3d6f61732be3b2256183d07a0fa79cb7452b5c181f. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/SEWDL0577110.
In Paradisum - Liturgia Dei Defunti E Dei Santi: In Medio Ecclesiae
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2b7fb719f270e779a5e08011ea36ff928d8912d79a0ef49b02ebc63e520fa08. 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/SEWDL0577111.
In Paradisum - Liturgia Dei Defunti E Dei Santi: Sanctorum Meritis
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7d7b5102a749de31b22e4d31e092e098a0c1c693be9029bd611c3a23ae9418e. 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/SEWDL0577112.
Missa de Angelis - E Canti Dell' anno Liturgico: Sederunt Principes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabd2258a348f567607f2912f541e6ac9795928df7ea9643692c200a79f542bdd. Chain 2 (Bitcoin): anchored in block 960101 (2026-07-29T11:46:30Z), 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/SEWDL0577006.
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
Missa de Angelis - E Canti Dell' anno Liturgico: Iustus Ut Palma
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26059d7f40dca359d87e431860fd70424d573aa1d0e6ae269c5140cfe1833e40. Chain 2 (Bitcoin): anchored in block 960101 (2026-07-29T11:46:30Z), 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/SEWDL0577008.