Cantillation is the ritual chanting of prayers and responses. It often specifically refers to Jewish Hebrew cantillation. Cantillation sometimes refers to diacritics used in texts that are to be chant
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 0xfab214bec4f10c2a05ba9c62c3e1717c6a38e38449587e1b126e38461e6ac603. 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/4b2b8fd0-6e3f-4352-ba53-3ccaa1f6deab.json and https://artists.proofprofile.net/proofs/artist/4b2b8fd0-6e3f-4352-ba53-3ccaa1f6deab.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Haydn: L'anima del filosofo, Hob. XXVIII:13 (Live)
Mozart: Requiem (1000 Years of Classical Music, Vol. 25)
Requiem in D Minor, K. 626: III. Sequentia - Recordare
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 0x8f9337294e78de589509fdec275cfbffdf83dfdfee54090192915b36c5405da2. 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/AUAB01050426.
Requiem in D Minor, K. 626: III. Sequentia - Confutatis
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60a2c438e6975fa8558fcfc9cfb04df41902ed95ea50c2c9c5c9cedebf99a487. 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/AUAB01050427.
Requiem in D Minor, K. 626: III. Sequentia - Lacrimosa
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50e10fc1f6b5c468ccb21700fe0a84793a25f48af513e1cb89c6150fbc3c1a13. 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/AUAB01050428.
Requiem in D Minor, K. 626: IV. Offertorium - Domine Jesu Christe
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c9ac0aa6757c1b2935514fd8f9d4ae011a98055214b3432517332e19d5a22af. 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/AUAB01050429.
Requiem in D Minor, K. 626: IV. Offertorium - Hostias et preces
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26f35159ac242cf2f2dc5a32d92f6db7010d4d8333cb952109ee6569ae4a6abb. 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/AUAB01050430.
Requiem in D Minor, K. 626: VI. Agnus Dei
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd33215a1c07bc286670359a35d3de5ce91247e2a7c4e29299c00c43091326e3c. 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/AUAB01050433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dc8d67a8a31b68c417b82f1d8c7d10f08512d9ca663a4ddec6049bd48d438db. 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/AUAB01050436.
Requiem in D Minor, K. 626: III. Sequentia - Dies irae
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4808ec6d840f35faf2187dacd30d928fd6276eedecc876238ed08580e8197973. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T19:22:41Z), 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/AUAB01050423.
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
Requiem in D Minor, K. 626: II. Kyrie eleison
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e825e273dc14d5921ed8a6ae7eddce231e5aab988d62a1a3afbe82e8be8a7c2. 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/AUAB01050422.
Requiem in D Minor, K. 626: III. Sequentia - Rex tremendae
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e419c02bf52cb57301ce4892913372827c3d810ee7fe6e2a36f596a46dfd92b. 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/AUAB01050425.
Requiem in D Minor, K. 626: V. Sanctus - Sanctus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa96589db46451f494983ed33d3c5857262fff3b47f2f4e42dc9c61864f53053. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUAB01050431.
Hallelujah! A Celebration of Baroque Choruses
Handel: Messiah: Favourite Choruses and Arias
Messiah, HWV 56, Pt. 2: No. 44 Chorus: "Hallelujah!"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x296f5d9aca8b12a067a875ccca20913454da867ac38bfb3639d2f75de4c44470. 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/AUAB00250105.
She Moved Through the Fair (Arr. Daryl Runswick)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x363daeb0acaf8045c367dc80e41960ed1edd38888b2ce281838abe6bb1a16522. 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/AUAB00650457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c91c36bf7d1f8c6904db7bcf4035229f92fc48490982e100544160de8085655. 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/AUAB00650466.
Silent Night – a Treasury of Christmas Carols and Hymns
Prayer for Peace - Sacred Choral Music in the Modern Age
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf59b814d01a1687b093454f30e8cc5e44ff3791450c439e7f8cb3609ee7a7e9d. 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/AUAB00250188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44f6c4c281d20e572139052557ca82c58204a5eae8806d18aa64bcf29d278f81. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUAB00250189.
All-Night Vigil, Op. 37: 7. Slava v vyshnikh Bogu
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44cb1e70a9caeb16dc385bf8e60b06bf8c113ec7848f7807a97729233c8d09a3. 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/AUAB00250190.
All-Night Vigil, Op. 37: 4. Svete tikhiy
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08a24107aa818991043f95f0d2c741643431b00a548349a6cebe3c3b16b75e49. Chain 2 (Bitcoin): anchored in block 960288 (2026-07-30T17:41:38Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUAB00250191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf8f87986f750b2b8cc4091a2ae4b9847ae770fd6f0beafe1ca2ee90aa72014e. 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/AUAB00250196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbb9711cfccc91ae81ef35b2127b67190c2fcd46229ebf0d3e836c4ba378dc41. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUAB01050435.
The Dam Busters - Rousing Songs, Anthems and Marches
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3dd312cf2ebacb92133febbe2eaec97b8328a496c505c209ef691f99c57fa51. 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/AUAB00350089.
Herz und Mund und Tat und Leben, Cantata BWV 147: 10. “Jesus bleibet meine Freude”
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6be45cc880c36a52423b5bee52cce5eef0b7b543076f001617687b07adb63e1d. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/AUAB00750163.