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 0x91576c70f2ec5a092396db5bd56427e8d3b15ac712e1f741e89c911b8d966195. Chain 2 (Bitcoin): anchored in block 954705 (2026-06-21T13:42:37Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f1542e48-62b1-4db8-8278-06b68d253c24.json and https://artists.proofprofile.net/proofs/artist/f1542e48-62b1-4db8-8278-06b68d253c24.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Bach, JS: Herz und Mund und Tat und Leben, BWV 147: No. 1, Chor. "Herz und Mund und Tat und Leben"
Bach, JS: Cantatas BWV 80, 140 & 147 - Jesu meine Freunde
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 0xaf073fc1f73915ddabb16fd7a8d7a569b10e472bb13628e59e6bdab4b8f11e20. 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/GBAYC5700116.
Bach, JS: Herz und Mund und Tat und Leben, BWV 147: No. 6, Choral. "Wohl mir, daß ich Jesum habe"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x917a1cf5489ab37b0fcbdddc64d1464804a2522d449701e9b8e3bc5b67a70108. 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/GBAYC5700121.
Bach, JS: Herz und Mund und Tat und Leben, BWV 147: No. 7, Aria. "Hilf, Jesu, hilf, daß ich auch dich bekenne"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10a1c5829b25b70a39276b96617f3dae37df2b29c766d9a24fa8b5bfeb9b019e. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBAYC5700123.
Bach, JS: Jesu, meine Freude, BWV 227: I. Jesu, meine Freude
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fa4ccb25f18b64cd9c610a9f0c4f1e88126eeb825d3b99daff12d2b8ea75f06. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBAYC5700130.
Bach, JS: Jesu, meine Freude, BWV 227: III. Unter deinem Schirmen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19c2643721a352cecdd47943d68591d1ae090f884b5574168c5713a2d4f143ee. 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/GBAYC5700132.
Bach, JS: Jesu, meine Freude, BWV 227: IV. Denn das Gesetz
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d21502cfc9a932ced455b65091c9461a738d16fe5db2010316e62f11a626e3f. 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/GBAYC5700133.
Bach, JS: Jesu, meine Freude, BWV 227: VI. Ihr aber seid nicht fleischlich
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3da30b12e9f89895ccd3f3915ad624ec5aeab8c1730c78e0b4b849b35ad23319. 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/GBAYC5700135.
Bach, JS: Jesu, meine Freude, BWV 227: VII. Weg mit allen Schätzen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c0a5de2f6936fc4e902a46f54d67c3e21bd3c3d67056a053ae7ccd2f188a9c2. 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/GBAYC5700136.
Bach, JS: Jesu, meine Freude, BWV 227: VIII. So aber Christus in euch ist
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67d08962e6d15089b34c028956fe8509bb988512abc2afd4e6e070e535c46581. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBAYC5700137.
Bach, JS: Jesu, meine Freude, BWV 227: X. So nun der Geist
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85e9fa1c1dd556e169e1228ea69b621b5fa9ff8c6ffdfb573c603b1b10fab33a. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBAYC5700139.
Cantata "Herz und Mund und Tat und Leben", BWV147: 10. Jesus bleibet meine Freunde
The Most Relaxing Bach Album In The World... Ever!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2258afe69cc85982351fab6c0e897ec52bbd02ebb5b2ab600202fa2bef0c89d. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/GBAYC5700126.
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
Bach, JS: Herz und Mund und Tat und Leben, BWV 147: No. 2, Rezitativ. "Gebenedeiter Mund!"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb5dc36462cbd2787e2aaef968a9a93a49db50a9983808b5c5cbe0eb91af492b. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/GBAYC5700117.
Bach, JS: Herz und Mund und Tat und Leben, BWV 147: No. 3, Aria. "Schäme dich, o Seele, nicht"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38f452fc66a77e65c699791a596f3868be027ad312c616e1b77e395bd4660e64. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/GBAYC5700118.
Bach, JS: Herz und Mund und Tat und Leben, BWV 147: No. 4, Rezitativ. "Verstockung kann Gewaltige verblenden"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf0c97b4c44c5d451e76bc9eb18e4c9e1d55e16e240cb81837a5754a195ccba5. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/GBAYC5700119.
Bach, JS: Herz und Mund und Tat und Leben, BWV 147: No. 5, Aria. "Bereite dir, Jesu, noch itzo die Bahn"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8f7bb7746e3ee069558ce972235920e7150c7ac087f20a394056796eb9524c9. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/GBAYC5700120.
Bach, JS: Herz und Mund und Tat und Leben, BWV 147: No. 8, Rezitativ. "Der höchsten Allmacht Wunderhand"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9d5778e6d0a9394d991cf63519186e2ea8b1d8b140787c7825820f8fadc88f2. 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/GBAYC5700124.
Bach, JS: Herz und Mund und Tat und Leben, BWV 147: No. 9, Aria. "Ich will von Jesu Wundern singen"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22af80440b642ffe501cf92466527da59eb207a13b95096adcf361d14de8c00e. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/GBAYC5700125.
Bach, JS: Jesu, meine Freude, BWV 227: II. Es ist nun nichts
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36fba8b1c0aad83f38cf42c35fd5c74de0d38d1398a103c654e320094c8362d1. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/GBAYC5700131.
Bach, JS: Jesu, meine Freude, BWV 227: V. Trotz dem alten Drachen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x604e2392c9d147b272d4fb9ffb37a0febadd5af6bbc08d7fcca9bb31ea46ba9b. 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/GBAYC5700134.
Bach, JS: Jesu, meine Freude, BWV 227: IX. Gute nacht, o Wesen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x802a5ba81ce567c09fef63f597ed9ace137208a426cb3bc2905a95db6dafbdeb. 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/GBAYC5700138.