Coro de Monjes de la Abadía de Montserrat
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 0x00045033a3088e0ff2d67f7789f5178c10621aa4f3b8b303b5c0f2d8f7b42d85. Chain 2 (Bitcoin): anchored in block 953791 (2026-06-15T13:40:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dd362510-7bd3-4587-9b12-9185d6d3ceb6.json and https://artists.proofprofile.net/proofs/artist/dd362510-7bd3-4587-9b12-9185d6d3ceb6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Responsoria ad Matutium in Nativitate Domini iuxta ritum monastaticum: Responsorium I: Hodie nobis caelorum rex
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 0xb12b4f8981f80c63a5a37a195ce1dbbc2e26151e39a484c116984bda220657d7. 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/DEF057331001.
Responsoria ad Matutium in Nativitate Domini iuxta ritum monastaticum: Responsorium II: Hodie nobis de caelo pax
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7511df5ec3f40f321cd58f6474cc8f418b821e4861ee23066d77a144366fadaf. 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/DEF057331002.
Responsoria ad Matutium in Nativitate Domini iuxta ritum monastaticum: Responsorium III: Quem vidistis, pastores
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb44dcc62b28591f9394048a7bc40b7e18abfdb2cf9613a9c1371c17327a35c5f. 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/DEF057331003.
Responsoria ad Matutium in Nativitate Domini iuxta ritum monastaticum: Responsorium IV: Descendit de caelis
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x206052ab31744d0b38bbd0e66ece1c2f561d20f613f88bc0b77dc5d03b4521a8. 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/DEF057331004.
Responsoria ad Matutium in Nativitate Domini iuxta ritum monastaticum: Responsorium V: O magnum misterium
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0e89ed475a23e8ae5a6c10170e2bf902f971afcd91bfe51fc46d59e778b722f. 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/DEF057331005.
Responsoria ad Matutium in Nativitate Domini iuxta ritum monastaticum: Responsorium VI: Beata Dei Genitrix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16e9c453c1b2aa7fe28bb14b8b9b9e8cc78166f9248d3949ebdaead69f998bdf. 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/DEF057331006.
Responsoria ad Matutium in Nativitate Domini iuxta ritum monastaticum: Responsorium VII: Sancta et immaculata virginitas
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb119fdb0ef51527e84fdbc6d313d5d4cb68d58fe5fb178d63384c92dd432fd60. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057331007.
Responsoria ad Matutium in Nativitate Domini iuxta ritum monastaticum: Responsorium VIII: Angelus ad pastores ait
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e6a4daf687f27e3ef73458bb5bd187ca51cceaf51fbacf7c9c2bfb0a2be690d. 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/DEF057331008.
Responsoria ad Matutium in Nativitate Domini iuxta ritum monastaticum: Responsorium IX: Ecce Agnus Dei
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34cd73d847f1224216286b93ad47a5f0e77d8980e5cd7832c0641851ad416bca. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057331009.
Responsoria ad Matutium in Nativitate Domini iuxta ritum monastaticum: Responsorium XI: In principio erat verbum
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf29103655e9aeb13e273ee12ad7795a72f538e4d179478be272093ce91adfc94. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-21T17:04:45Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057331011.
Responsoria ad Matutium in Nativitate Domini iuxta ritum monastaticum: Responsorium XII: Verbum caro factum est
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05e30f634e078c9d26d677ec79bee157d1f12b97ea2e75519b0f140288f4687e. 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/DEF057331012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb12b4f8981f80c63a5a37a195ce1dbbc2e26151e39a484c116984bda220657d7. 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/DEF057331001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7511df5ec3f40f321cd58f6474cc8f418b821e4861ee23066d77a144366fadaf. 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/DEF057331002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb44dcc62b28591f9394048a7bc40b7e18abfdb2cf9613a9c1371c17327a35c5f. 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/DEF057331003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x206052ab31744d0b38bbd0e66ece1c2f561d20f613f88bc0b77dc5d03b4521a8. 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/DEF057331004.
Responsoria ad Matutium in Nativitate Domini iuxta ritum monastaticum: Responsorium X: Beata viscera
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d4c242d5da34305f259492c108b33ad3b1c9f927a37bf4b8c99a9a048af21ca. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T16:43:41Z), 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/DEF057331010.
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