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 0xdbecc00f0d9699e46047f4c382c88ac88792d69cab869d80641e3c4c08608271. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/962a9fde-bdc7-4472-a957-69a9cb5b7a45.json and https://artists.proofprofile.net/proofs/artist/962a9fde-bdc7-4472-a957-69a9cb5b7a45.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 0x055ea259e35e7ad294a8dc3c9fdd376d517a79fd7e5280c51355dbd1ec217efd. 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/USA4N0900114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd10540b81acb32287ea9b3673cc7a81e015b8343e8cde899b1e2ea98156606c9. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA4N0900193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x788c1fc7968abf7699434a4340d777722dbcda4ec620b22a7699735679a0b464. 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/USA4N0900194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb66c2b7dade77ff65013720e028f430d1abb9ddc2e8812924edc45c11f169fa0. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/USA4N0900195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10c8fc8a4e21cabcc3be79de3b08b4a5f5d50adef68adfe576aa700b4bafc728. 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/USA4N0900197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9e291ce6521e8bd4c5790455b942f959141ecef37d188071e3629e001c8f568. 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/USA4N0900198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9689df066db90c37709e7ba230707462d3360daf1eedc1e19ca226a1470fefd9. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA4N0900199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaee458e83e2409024582cda8403f2467a55e452f9b98de5f2bdd35abb9137593. 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/USA4N0900200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f0bfc9b0ebbe03db2a7070c40e30927d3ff2247af33844df97e658f77800244. 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/USA4N0900202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a74b77134850e0a1fde332796a89320d1c449bbd01cd7f35ec3df84831f86af. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/USA4N0900203.
Tú Vas Conmigo / The Lord Is My Shepherd
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea20cd4e19ec2e4a9eb405dcd39fb2bf20612905248a64f9db466e29efeb66cb. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA4N0900196.
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 0xfa189758d10b23640c12394d1a828ba58ab347959d221f1cac8c70f2c5133e3d. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/USA4N0900201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dcde1933316294d3a794c350f501f5b63b0d7a5f320e2c74f3ef92b9af64b3a. Chain 2 (Bitcoin): anchored in block 958670 (2026-07-19T05:26:23Z), 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/USA4N1800174.
Les He Lavado Los Pies (Bilingual Version)
I Shall Live: Ritual Music For The Paschal Triduum
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4d46641c7f0311ae86078f08535dbd20aa766b2a2c7fc0d0118120c11b4be76. 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/USAXF1200030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13992569d65902957cae08091db0682a56c5ebbfc6da31e793106c78065e7cbd. 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/USAXF1200036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9743ba6b272eec98d7365b455ed24be62a9e7f6550ebd9df3fe7d09ef53f4a3. 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/USA4N1900685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b25fc8cb29052acb2a7afc1032a0ac8a0d9300026697d8068c07485f9615571. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/USA4N1900283.
Cruz Amable y Redentora - Bilingual Version
Cruz Amable Y Redentora (Bilingual Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b15801e5529288763b768ca3e9de6cc4d59f6d277aa465609f705cf220d35c3. 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/USA4N2200148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x104d52b59b83c42dfaf7ef84305efd377e0a6438cbcdbc389492a3fbee858b14. 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/QM4TW1527331.
Sal de la Tierra: 50 Cantos Contemporáneos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x177ff687cf5829597db855cd213cbc98da87987d623c6dbb9790eeff4421d288. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/USA4N0600231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54a68a0914bdc2a19b72f7c9ccfe10ddfd0f6883f7501074dd87aca9200221d7. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/USAXF1200020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x902a8bdb78a3c9f4c876122befbae15425263e8e3e742bb80bf9021b890876b2. Chain 2 (Bitcoin): anchored in block 960381 (2026-07-31T09:50:11Z), 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/USAXF1200023.
Called to the Supper of the Lamb: Holy Thursday Communion Processional
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecae547ab1b5b5f2220d922c22d733a780d2a02ecafa38cd5e2424f5e15148e4. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USAXF1200024.
Called to the Supper of the Lamb: Easter Vigil Communion Processional
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff60933d70c20ad0734e85e8f510e528f175f2040b39230b84e73c0b635ab01f. 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/USAXF1200038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76c46ec2ca909cde065181e294932f81c30979d428a8eb733ffacd1e6d20efbf. 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/QM6N21712819.