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 0xe1da1a065125f1bef72f3ed4e2126d4f44babdc92f611ff9cec1350bc5d90e62. 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/dbf235bf-943e-4667-86f7-af86596473cc.json and https://artists.proofprofile.net/proofs/artist/dbf235bf-943e-4667-86f7-af86596473cc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x31d519b09992ebf9bf3e080638250b8758e00dbdde48557fcf9f9c6e18e7e275. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/QZPLR2185874.
Domine exaudi (Psalmus 142) cum ant. Eripe me
Qui habitat (Psalmus 90) cum ant. Miserere mihi
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a4aa1590fd3e3d02307c69cb552b658f747a6330877659c9329d53fa6629ad3. Chain 2 (Bitcoin): anchored in block 958571 (2026-07-18T15:39:25Z), 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/QZPLR2187767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01dec7dbc7a50bf2aeae6320ea05336579d8ea0ce105a0219007d2bd438515ab. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZPLR2184201.
Missa in Commemoratione B. M. V. de Columna
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2d7bb7c6d897eee4f731e5f1a2402a94c81b272230244aec6b7978b6517fd1b. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZPLR2178282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23cd28b88070d02b3d1ab9b936c3b4c68e4da5e941d2e63a24227d34a9113f14. Chain 2 (Bitcoin): anchored in block 958617 (2026-07-18T22:07:13Z), 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/QZPLR2188683.
Inclina Domine (Psalmus 85) cum ant. Voce mea
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8acc7870a821d234bc90f743e230475abd09852acc372a2b6cc9080831648fc. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/QZPLR2184222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc32c9b065f36612bc3633c16b6702aeb5b4ea9ba18fdab48830bb44e705487bd. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/QZPLR2188670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe1d2b91ac1ad98ab3d0d147a1b2ed6c6c0a7d43003c72de562506f947b88e60. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T08:56:51Z), 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/QZPLR2184250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f84c4af2068d8cae8ab621291f733138654077ce555db18ab5eb021c143b025. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZPLR2189252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12f9f7887bb595b659300fa9b0db8fd7cc5c8a63f7d802bedd8afd915313bbe0. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZPLR2189260.
Exaltabo te (Psalmus 144) cum ant. Magnus Dominus
Quicumque vult (Symbolum Athanasianum) cum ant. Gloria tibi
Tota pulchra es Maria (more franciscanum)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x092b102e15e2172d7a15b274a16a4e62f4c30a2dcde82273a269079578b6b243. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/QZRP52121005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x213836fcc29a6b334802f363299c11cdbe2df56a4fc61c0ebe1e8c1957915427. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/QZDA42225944.
Miserere mei Deus (Psalmus 50 – Alter tonus)
Miserere mei Deus (Psalmus 50 – Alter tonus 2)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde6d95b5da9f8f0cbd0759ed5fbc5eb0238b030566c83c26c9d9b8e039e95305. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T10:05:23Z), 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/QZES82237749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a7d5a8ddd156c367edf8246afc73c7c8d4a030e50a23bc6a726f85471cf4d0e. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZMEM2279763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac7181e9731c9dec4960c63bf7d6051e067fd684f28b33b9424a24d222899d32. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/QZNWX2258839.
Ad regias Agni dapes (Alter tonus) [Live]
Misterios Tradicionales del Santo Rosario