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 0x58c7cda4568059f94379723ab08f65e081cd90cf621a0b8a946d22e4307dae57. 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/4e77fbd3-7f2b-47d4-ae2d-40918aa140ea.json and https://artists.proofprofile.net/proofs/artist/4e77fbd3-7f2b-47d4-ae2d-40918aa140ea.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e4e4ceca081f601333c4afce75b0838d33317dc6692a4203e027fd4f360483c. Chain 2 (Bitcoin): anchored in block 958596 (2026-07-18T18:42:38Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZRP42127512.
Divine Mystical Spiritual Choir Chant (1 Hour)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4919f023fc0f62f033e60e501c2ab57010d7f6ab222f42f7fb0e9354b52c7007. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:42:54Z), 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/QZRP42125992.
O Filii Et Filiae (Chant of the Mystics)
Gloria Missa Regia (Chant of the Mystics)
Orbis Factor Kyrie (Chant of the Mystics)
Pange Lingua (Chant of the Mystics) [Pure Chant Version]
Salve Regina Monastic (Chant of the Mystics)
Signum Magnum (1 Hour Chant of the Mystics)
Salve Regina (1 Hour Chant of the Mystics)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff37e53f2deaf377ef0a98e8fbe7f36bc3505e0e3f4cf478f8bd47f81b28b455. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/QZHN71983982.
Lux Et Origo Credo (Chant of the Mystics)
Missa Regia Gloria (1 Hour Chant of the Mystics)
Orbis Factor Kyrie (1 Hour Chant of the Mystics)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7145f8eb9e88832fdfe1e638a2a66d734aa1f4ad0476c5d10037f4af1caca7df. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZHNA1941636.
Pange Lingua (Chant of the Mystics) - Pure Chant Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8e53a1acd01eec6df8193ac78ad5f9d975eb9022ef7465f6de86900e0eb5dbb. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QZK6P1930727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b3ac9e630937d7dd1ed6d98cad967fd2281245c4e31e88d9a71b54bba445f94. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDA72060536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb5b7b0730cd7d5c5a273a86e5f8414bd371dab181a81f841b7360f18ecf7f8b. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/QZTB82294012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f1e70b27948312d285fcdac1c865127ca3622d056b3a1efb8ffac90666ab190. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZPLR2070457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc4ca73f921584f0135aeac0015e70fa289cd9f5d306a5b198a87da6c27ab19f. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZES62161866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff4f12ab52ee3fcc557aeab0592becfed26f7e0c879776b1460073b31c355935. 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/QZHN72153905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cc38f294320b9c1231037c53c7129b4510ea229c2672725cb450fa77604455e. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZMEN2177874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8b614bf5c7b4bc580cfed726d37c8bec937fa9a144e24366d9ec0d69eb04ec7. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/QZMER2174057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ac6a0c4e5ab6b80929f0426af9599b77020a05fadf7b35f72608866babfe9c9. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/QZNWZ2121846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ac6a0c4e5ab6b80929f0426af9599b77020a05fadf7b35f72608866babfe9c9. Chain 2 (Bitcoin): anchored in block 957681 (2026-07-12T09:09:02Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWZ2121846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e3764aba77c797cd28a7938e50d3249170b503969e1f264a61edeef2177a7f1. Chain 2 (Bitcoin): anchored in block 958738 (2026-07-19T16:05:34Z), 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/QZDA72222432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a0c2919141f90ad2b3f54006fb6f10aa262a02af0decd0f1ba128b6ada95bce. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T18:34:21Z), 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/QZES82238987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c71b3d12aba16854e2a2fd68c28801bc4bd7d67a04eba37507eb4b0719816c7. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/QZMEM2255772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd338abb2ea798c2cde19b5776c47130900f9be32dfb5d97888579e3e4ef2bb56. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZTB82294004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x960580e0f6d7d8fbdf177296538a90b5d572afea1748503ea502a16532892d06. Chain 2 (Bitcoin): anchored in block 957772 (2026-07-12T23:31:17Z), 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/QZTB82294008.