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 0xcc3ed5b16cc1611f1097c20b3a269ff24091aaafa56bb20e8d762bf8452a50eb. Chain 2 (Bitcoin): anchored in block 953660 (2026-06-14T17:20:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5294f8e9-6100-4942-81e9-b27154322716.json and https://artists.proofprofile.net/proofs/artist/5294f8e9-6100-4942-81e9-b27154322716.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Misatango, Misa a Buenos Aires: I. Kyrie
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 0x4ee7fa14bbe3f68bbe9026b89d569d9d55f12d447a1f2ac54e85bd9eb0b2429f. 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/FRW951614201.
Misatango, Misa a Buenos Aires: II. Christe eleison
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9310066a9aa3c26deef8dcc13e4f9bedb4fa3b74f6eac8220348042395b18e58. 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/FRW951614202.
Misatango, Misa a Buenos Aires: III. Gloria
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09cabfc5a66d59c7ca923ae7dee924ad6c0ad0e49905c6b4e8e1a17e2647d0ff. 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/FRW951614203.
Misatango, Misa a Buenos Aires: IV. Qui tollis
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa94c0152626f15d402711eee6717767f1f33e5be74a790838b84aadbea2e5ae6. 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/FRW951614204.
Misatango, Misa a Buenos Aires: V. Quoniam tu solus sanctus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84df6311c0c5e0b08fb5be2d56e722d8725ac81b5761f25240755af24aee9bdb. 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/FRW951614205.
Misatango, Misa a Buenos Aires: VI. Credo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cf75f7c0dc226e1f7ca027232704b8d61b1d1bb6e181500722d890b65ec83f1. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/FRW951614206.
Misatango, Misa a Buenos Aires: VII. Et incarnatus est
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0aeca1232b2e085d8c80d0e44fc427475e3d42d59fc29caaad16ef2ec5c1fff. 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/FRW951614207.
Misatango, Misa a Buenos Aires: VIII. Crucifixus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x555e337befbb42b8019fbab260a1371f9ecf54e45dd60f0138d58693c63a46be. 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/FRW951614208.
Misatango, Misa a Buenos Aires: IX. Et resurexit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd33c739e7241b057a45054a42a28184926e7671a5b08b4402af2c319243e1c57. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/FRW951614209.
Misatango, Misa a Buenos Aires: X. Credo in spiritum sanctum
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccd24916c988837d69f7fdca09a634050fc2d962e2f129f446d5028e7ee194b6. 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/FRW951614210.
Misatango, Misa a Buenos Aires: XI. Sanctus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0348c1af1344a1f31415cf143c0a4cdfcdb59155cca200d60f2f0b977e890c09. 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/FRW951614211.
Misatango, Misa a Buenos Aires: XIII. Benedictus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc72b9e8277cfd0f0590de4d2de217289be7175222cb4cacca1d3bdc2c442c238. 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/FRW951614213.
Misatango, Misa a Buenos Aires: XIV. Agnus Dei
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ee01f7f1f5746ec02d21b55bb68677df31c7542affd662c17aeb58041e5344b. 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/FRW951614214.
Misatango, Misa a Buenos Aires: XII. Pleni sunt coeli et terra
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x575420a36e0287904591b04acac9cdd93ea54b0ffaa96cb17b40f2f691d09acb. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/FRW951614212.
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
Misatango, Misa a Buenos Aires: XV. Dona nobis pacem
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64563938caf0045547565de8460a5fd79512f7d8643045fab9eecdf21279da11. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/FRW951614215.
Les 100 Plus Beaux Airs de Roberto Alagna
L'elisir d'amore / Act II: Una furtiva lagrima
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6f792ae5bb5278bfff2ddbf1b55382ea7fe771d9ead6a5768420d613e8339e6. 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/GBAYC0103080.
Les pêcheurs de perles, WD 13 / Act I: À cette voix... Je crois entendre encore
Orchestra of the Royal Opera House, Covent Garden
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe239f4615706572c66e8fc1a2e656f54d659cb9ec332577b0bee3f631cf528b3. 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/GBAYC0003010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3214dd9b019c48236b22d63bbaeea3e0d5a688185dc6fb9dee46b856938c25e. 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/GBAYC0301566.
Les splendeurs de la musique sacrée, Vol. 20
Opéra français - Coffrets RTL Classiques