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 0x8f265dce9ead5869cf8dcba259ac7c583db0d937a37568bb4d8286db140a57ef. 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/12c6bf71-8aab-4d0a-a8d3-5e57785ea07a.json and https://artists.proofprofile.net/proofs/artist/12c6bf71-8aab-4d0a-a8d3-5e57785ea07a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Cristo El Mesías (Reedición de las mejores canciones sobre Jesucristo)
El Hijo de Dios vivo, Vol.2 (Reedición de sus mejores canciones sobre Jesucristo)
Canciones Selectas - 12 Cantos para la Misa
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 0x8cee1e8f3eaea37586eaea00cd4a391b16f2e8c37de42b8db677bd9241299f5b. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/USA4N0900131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd59b4db277063738a919408f7ab9904cba5960b1b7163a9eb14336df3d122e7b. Chain 2 (Bitcoin): anchored in block 957638 (2026-07-12T01:56:41Z), 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/USA4N0900133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x870dbe9d46e242900c4a50fab54c253441e841235ab19283ed5c61ef30283611. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USA4N0900134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1462f8114daa7165b182e69c3d5cd42dfaadd3d70e94864ba149e50690483389. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/USA4N0900135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72f8aba843a2eb815172f642aee431af9e8a904f90f5219bcbbac97bf0b8a78e. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/USA4N0900138.
Elogio de la mujer fuerte, Teresa... +q feminista?!! (Cantos y poemas con S. Teresa)
Caminando en Fe: Cantos de Alabanza Católicos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b6cbf1301f7bb39a9cf8d569dbbe596c023ff4fa4409023136774917f670770. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USA4N1200157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b7b3549f983ccf011aa0d1b78587d721da78d640551904767a9174aabd13a53. 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/USA4N1200965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7ceb71c9a99812f0d0ba85aa82778becd56646c59e26ee5fd827b73ddf7da20. 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/USA4N1200599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4383fbd759315335940b3ae0bc958b52819379dca92e6789e6c1ab77c999866. 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/USA4N1200008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34f14d300b8911785de034f5ea2d1e42e699a595ceaea11e5f915d26fdd5caa7. 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/USA4N1300910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5538f03c8848653254fa66770309d9b2914bf0a14f238ec80136ecff0c1f827b. 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/USA4N1200591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a25901d7f5728ee8f489c66d73fd0a14007ca3fcbbf2e9cd20927c2a950e51b. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USA4N1200209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac125400797c3a0b6534d26216c63c95a7d4c629da39ac77eeab85289807e89c. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/USA4N1200595.
Entonemos Himnos de Pascua (Porque Cristo Vive)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde67d93c1b391276b0759bd9dd7c70aed68255cc97e5c9aa7e13dea12af87291. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/USA4N1900675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70dd37510fe01fb639b4e511c323932d57789ab08fe65c7ec418e1af42b573f4. 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/USA4N1200144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbd7f2f0944b85eb99a777384b895e5f0e942fd56c176e7e43a6b487e5d81163. 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/USA4N1200677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9365b6892e1c86ed1db5f0850e11d52dc2195a444f8cb87744c05b87cd39f408. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/USA4N1200137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c6ce0c306f3e7c961e38b4e297adb4e89a1f6175d334da6777432734baf0abb. 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/USA4N1200861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf008c897f6f280e4d62b0b0e0f6638a0f808cb5ad75f5f17517c5ae5c79e9394. 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/USA4N1200593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x835227e4ee92b62944f38123fb7beda17b1022d908e15f77f39958b0ec80efbb. 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/USA4N1200596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd52c21ab917489626e7f2df81089a8a7fa6ef33a4ba8ecd0db8a6efa220deede. 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/USA4N1200976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ddf0b6cc652eedfa47d87396160a82c46ca44d2a4d074709bd2b1b206f12e09. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/USA4N1200600.