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 0xe5fbc0e4a13b4bb95d4978b513873f5062b1b33c85eb331ff9842770e9b18e80. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3c65b3c2-6a90-4020-a6ff-6357128f2e09.json and https://artists.proofprofile.net/proofs/artist/3c65b3c2-6a90-4020-a6ff-6357128f2e09.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
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 0x936861877afdcc6d09fbf9686bc4bf787266570c6bcaccb36cc3582f3d6900d2. 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/GBARU9300004 — a six-check JSON result.
Ave Maria - Die schönste geistliche Musik
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcba50af0332a12ced23732e1140c55fadefbcf3abcef99961d1489cc4a0392f. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/USPM19001027 — a six-check JSON result.
Le Quattro Stagioni: Violin Concerto No. 4 in F Minor, RV 297 "L'Inverno": II. Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73ef50a756ad3a30b1c8aafee7d7cebdcf0eb3cf695bdfa9847bec447a78940c. 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/USBC10100768 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac9eb57534af8f3ba20177ab74a4f32f5d331c639bc24731a24d3706e05738e1. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM19200445 — a six-check JSON result.
Te decet laus (Conclusion of the Matins)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe796d4c2dacd4fd661e4f4583d02f68db2612189422c9e62730dbd3522af0737. 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/USSM17800112 — a six-check JSON result.
Grates nunc omnes reddamus Domino Deo (Sequence for Christmas, Midnight Mass)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ce5b4a73dfd4ff4b38c80aa167e53477b62aa9e9adc4c69cdee5c379e19327a. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM18000417 — a six-check JSON result.
Nos autem gloriari oportet in Cruce Domini (Introitus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa690f400a2c96346115bb5ceac59108fbb9375bee8c51effa9c65233ee88593e. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/USSM17600329 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58f8c676e12826428522faafde148886622c43ea79010576ec6e4dc6164594d6. Chain 2 (Bitcoin): anchored in block 960199 (2026-07-30T02:30:29Z), 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/USSM19200446 — a six-check JSON result.
Gloria in excelsis Deo (Grand Doxology - Hymn to the Angels)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x062a65ac3437a263de4509b11e61a1eca98491aa4753009f29526f966f49b7a1. 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/USSM17800113 — a six-check JSON result.
Laetabundus exsultet fidelis chorus (Sequence for Christmas, Third Mass)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5214486e22ef7c9c075dcf6b5ba00221bd9cb131de39d80ca4c485bef141117. 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/USSM18000418 — a six-check JSON result.
Procedamus in pace! - Cum angelis + Psalm 24 (23), Verses 7-10 (Antiphon)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ede8f821a4fb6bd9ecb5efa33ddc64447445f5d3538373c1b08de5b9b0a11ca. 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/USSM17600330 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98e12b3a6197674f7fb313a3b8a0477741f0988e4e4363eb85d3721dc3b9508d. 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/USSM19200447 — a six-check JSON result.
Aeterne rerum conditor (Hymn at Lauds on Sundays) [excerpt]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f4ed4653ecca12332a0b7c61d1922a97743d1e8204939491a154816fd233dc6. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM17800114 — a six-check JSON result.
Stans a longe publicanus (Antiphon, Sequence of the Publican - 10th Sunday after Pentecost)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x865b8bbb6b429626dd3067db042c6712df4d5a680a826a8dcf6586c25f54e087. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM18000419 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x730e2f0cca2b7643e3852466b3369cd7f0958feb53287e7a12dafae78c25b15c. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/USSM19200448 — a six-check JSON result.
Inventor rutili (Hymn for the Lighting of the Easter Fire)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x829804faff160fea93a70a5db451fe6b387aafd984b4275783d1e93597b6846f. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/USSM18000110 — a six-check JSON result.
Lauda, Sion, Salvatorem (Sequence for Corpus Christi)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x711e5dcad062f8b604849b2f0bb7809cf4c43a22f8b23526b285a936be5418a4. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM18000420 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed68eac2023c5b7d0360fa32574f1066615a7e9f4bae5425d5e1f2e9d67c6e9f. 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/USSM19200449 — a six-check JSON result.
Mediae noctis tempus est (Hymn for the Night Vigil)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95e22f57be3d8e2055a62fa31a0868918e22797d607cfd761e5697bb452c4cf9. 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/USSM17800115 — a six-check JSON result.
Victimae Paschali laudes (Easter Sequence)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf62f45b55d9b02d48a148c0f9f2ab17e3dc2f54c05c2d2cd30ceba750cdb38a7. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM18000421 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e34a0c3fdf0bd9838b2a7df784a3fe3c4dfdea869918edd073d3c33459b1f4b. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/USSM19200450 — a six-check JSON result.
A solis ortus cardine (Hymn for Christmas Vespers)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9da2a5e7edd8bcc77fdc4ecf1ad2dafe775fee4ff5ef890b33906d57c782ed0. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM17800116 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbc40fd6cc75e65bddd7cae5492ed1afc00e8f8cf1a094212b6352bc59ae6b75. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM18000422 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86a89cd5d15f8ac06dad5e9dd2cb92667c24df7c6cc1a4635c91c3870a691d50. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM19200451 — a six-check JSON result.
Gloria, laus et honor (Processional Hymn for Palm Sunday)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d34715b13f8e3b0e9ac7cb352409a4c87f9dbab7b48292885d8d1a386fbb659. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM17800117 — a six-check JSON result.
Summi triumphum regis (Sequence for the Ascension)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2877a75bc4da286c6dc45b3d71f29a8d12b4aaec28d3e97ed15850000b23c185. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/USSM18000423 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ae574dc321aa47ce9b8bf6a411e6f240ba8f0fedc7e696b87b7a20d49bac22d. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM19200452 — a six-check JSON result.
Sancti, venite, Christi corpus (Celtic Hymn for Holy Thursday)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3b3637595a3d2c19fe51c7dc2e607bb2fd7a27dad08e736c29aef3a76e322a1. 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/USSM17800118 — a six-check JSON result.
Omnes gentes, plaudite (Sequence for the Ascension)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2d07d26d3285364bcf808845f4c646a89eec12b7d04a612999654418b66c8c3. 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/USSM18000424 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bdade5495e456ea63bccfa3b7870faed533e2d5597e404d77fd4596b6254e23. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/USSM19200453 — a six-check JSON result.
Congregavit nos in unum Christi amor (Antiphon for the Washing of the Feet on Holy Thursday)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e5b5c5ab8bf251e9a5df843cb9bbc8d1e39fb23e5c43b265a15ba07eb0fd300. Chain 2 (Bitcoin): anchored in block 960276 (2026-07-30T16:01:17Z), 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/USSM17800119 — a six-check JSON result.
Veni, Sancte Spiritus (Sequence for Pentecost)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d66aa8a00b3ea66016f38f25413bccbb95c8c35bf2c9b5ec539bf9367f75c15. 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/USSM18000425 — a six-check JSON result.
Pacem relinquo vobis - Laudate Dominum omnes gentes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6296eb7e8c2b18d80a6045f4e843b8b6ae1a6296ec637c01e695e4048c67ebd7. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM19200454 — a six-check JSON result.
Pange, lingua (Hymn to the Holy Cross on Good Friday)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfd8613567f213e1d54951b89da1424945235eec2fb9702c1b23e83d18bcada9. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM17800120 — a six-check JSON result.
Dies irae, dies illa (Sequence from the Mass for the Dead - Requiem)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee9000dfaa3180375bc55ded1fb621e7b9155f1f86dbecaf05e981649255727e. Chain 2 (Bitcoin): anchored in block 960153 (2026-07-29T21:57:12Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM18000426 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0e0d65b902e2a5bb0afaec937ac090dda180272c0d63181d8138a42cf05ed16. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM19200455 — a six-check JSON result.
Hic est dies verus Dei (Hymn for the Easter Liturgy of Milan)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e8e053ffb715b234efdccf32a69d33fe45aca1999c83803990390e5ae0f047a. 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/USSM17800121 — a six-check JSON result.
Rex caeli, Domine maris (Musica enchiriadis)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19a5ff79d039605662eb2381697c4bfc7bc9fe65a961482f79021b46930d01c2. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM18000427 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a13c2fb58bf11b4485d106c7dcbfd9bd2d2e40a38e3f335105cd1092bb7cace. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM19200456 — a six-check JSON result.
Beata nobis gaudia (Hymn at Lauds for Pentecost)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fc91c927789e283bd2c22067c10e7247f804d2e9b93906504a428525b516668. 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/USSM17800122 — a six-check JSON result.
Mundi aetate octava (Sequence for Feasts of Saints)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x341eda48b1e016bf88460d13eeee58ce44572bda11a2f392d84a47a4b9600b89. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM18000428 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb615ffac70c2a976d45e998fa72a02af22b8f7e40d6974bc2827adbd7fb02b07. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/USSM19200457 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ec591bf3f4f296993e18819d14d43689ecd0306ce118206215184235fbed494. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM17800123 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6cd921ddaac66fd084e9de4a98d6c88e3d55533957bd1fb9f32257339620ea9. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM19200458 — a six-check JSON result.
Ut queant laxis (Hymn to St. John the Baptist)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67c75daef944e1968a2315336a52703ff1f425f5d84fead2649a49e0aa31c327. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM17800124 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdc52b1c9eb2f920cf7f3ce3027180bf64aa4335c7997da03bbde37268061d72. 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/USSM19200459 — a six-check JSON result.
Aurea luce (Hymn for Vespers at the Feasts of Saints Peter and Paul)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a17948091647a71a3b9a0679e357a005e2b2ac828d175a267566079243ede40. 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/USSM17800125 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b929a490ef5ae93376284059892a608cff746ee8b475a81f8b40a0351cb3c34. Chain 2 (Bitcoin): anchored in block 960181 (2026-07-30T00:53:20Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM19200460 — a six-check JSON result.
Urbs beata Hierusalem (Hymn for the Dedication of a Church)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf633773bcde3ec6c6690e46d9e3c5f3eceaa54678194faeaca8e9d384c2ad49b. Chain 2 (Bitcoin): anchored in block 960276 (2026-07-30T16:01:17Z), 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/USSM17800126 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b55877c6e6d4fef13db0f6853f694d227dae82d091675af7a9ec3bfd18dafed. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/USSM19200461 — a six-check JSON result.
O quanta, qualia (Hymn for Vespers on Saturdays)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8582f88b78bcbb1a5f5466c07df414f074a99c294e7a98179b33f230ac238529. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM17800127 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27bc9b0bc088809179ee9b54a465c76e4a2fd91686d7e3f004f02c1007f349e5. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM19200462 — a six-check JSON result.
Alleluia, dulce carmen (Farewell to the Alleluia before Lent)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96a5c2cbfbff3ede5b0d0a7e694074333139f536085302f76e06a88909ef8fda. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM17800128 — a six-check JSON result.
NPR Milestones of the Millennium: CHANT - Hymns and Sequences - Gloria in excelsis Deo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67c75daef944e1968a2315336a52703ff1f425f5d84fead2649a49e0aa31c327. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM17800124 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x136fe83d8f53f20d922a316fed0d19415d267c3d3f050ef0d61700555f8b44bd. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/DEA299803500 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6d1aec63e144e4e0cc5a4dcd03c6e51e946fdc3ee30e63d1ec4d2f797fc679e. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/DEA299804600 — a six-check JSON result.
The Quintessence of Chant (Gregorianische Gesänge I & II)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07fa6b74909aef6566f2d826040d0eb657886cf8cccf371f201b3d86f3fd0284. 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/USSM19504314 — a six-check JSON result.
Resonet in laudibus - Legend of a Christmas Song
Antienne: Nigra Sum Sed Formosa - Psaume 121: Laetatus Sum in His
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5cf1ab25dde7061821412d58a9ecd81181a2b9ac6781756561e4611b60fb74f. 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/DEE869400474 — a six-check JSON result.
Sancta Maria - Geistliche Musik aus dem Stift Heiligenkreuz
Gregorianik - Die schönsten gregorianischen Choräle
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc1e75debe570666100de6c0e9fc1ddf1b1166e110a408fb3c03afde882a0dcf. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEE869400469 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac44eb79aed6a18a196935a896de9cd4192cd5ea4b8aa0ab0f148aa226c225ef. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEE869400470 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5cf1ab25dde7061821412d58a9ecd81181a2b9ac6781756561e4611b60fb74f. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEE869400474 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf38e706cd1bebcd1a015ab9b94bc096522bb59d653595bbe9525a9c66bbab339. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEE869400475 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5e1765e76382ab62cdcab0cc5652cbc0720f86265c3717f701a15a7a83a99f9. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/DEE869400477 — a six-check JSON result.
Antienne: Cum Audisset Salutationem Mariae
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x225c2e820bd335dbf8c2767011ee5c4aff97de15a870cd239de317f2b5fe6cb1. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/DEE869400478 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a22a468dd9b31a75297f94d1fcff619c0fbd4ea4f2fab3c40e443cd7b3a6985. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/DEE869400479 — a six-check JSON result.
Antienne Mariale et Trope: Salve Regina Misericordae
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb8ba0ca9837bc6174d67bdf22e9d7d838966dbd2f1b240fdc0acd2577efff60. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/DEE869400488 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4ab14dc15be888c00d67bc23038d95278510fee024a754dac1a7b440044483b. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T18:47:29Z), 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/USSM19504308 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07fa6b74909aef6566f2d826040d0eb657886cf8cccf371f201b3d86f3fd0284. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM19504314 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b7df07c7979ba987303ef9c059f01061fc58aa9b8bb0eb0c272a61ee95be953. 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/USSM19504322 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x289e31d69c0a556c6a7cc91ec7171311ece71944b59dc659e39e06621751fd05. Chain 2 (Bitcoin): anchored in block 960153 (2026-07-29T21:57:12Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM19504325 — a six-check JSON result.
Agmina celsa sunt - Gaudeamus omnes in Domino
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8baf749b35a8649c2a8145c01c8ff5635b9d2cd8e8973074a4882151452a77a6. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM19504330 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86a89cd5d15f8ac06dad5e9dd2cb92667c24df7c6cc1a4635c91c3870a691d50. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM19200451 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27bc9b0bc088809179ee9b54a465c76e4a2fd91686d7e3f004f02c1007f349e5. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/USSM19200462 — a six-check JSON result.
Life of the Virgin Mary in Plainsong (excerpts): Salve Regina, Mater misercordiae Antiphon to Mary (I tone)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc6ad56bd6644db89ea5465bd4b965088507af22f5a334c4bff4f65c6e8de19d. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/USSM10408861 — a six-check JSON result.
Resurrection Part I: Composed Music Works