1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x9d37e838cf12fd64356d8c34b36487bf37069500d8b2502788b91050be2de2ef. 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/05d291b5-03ba-4479-8f74-70f07df22a00.json and https://artists.proofprofile.net/proofs/artist/05d291b5-03ba-4479-8f74-70f07df22a00.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 → block OTSBitcoinBlock must exist at that height 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 0xb632bcaf5063ddf9234b5a9c679a2496556a2e81a2dcd82c6101b823658f6102. 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/DEG730113966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5aabe0181db54669f3543f91510151e5fdca1210a4f6d5cf3321c7f647816101. 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/DEG730113967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x304594375fcd4a0f5ca50028648b926bc27ec7ed4ebf8ab5a25c42e419d85d8e. 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/DEG730113968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bb8a45d09fed1bd8c3c0ef29d350d554d280a931648bdd5c8433ba6127a4762. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/DEG730113970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x531a698b5eb2fc5ad82dba82b5aee19681a31a917fa16b290fe21b7cd99d7a39. 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/DEG730113973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80614757bebe4d13628786564dbb0f151088c05329b6adc0faa2bdc4d24fb6e5. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DEG730113974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x737a2b6258e333b36ccd62e48f04a6cf741f388a287d4b7d2bb944efafc045db. 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/DEG730113976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1b8f03f5a9013cd5b236a29c969ef9a0ff4fa513e60ad2e0d6b9063007e91dc. 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/DEG730113978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x975be409724ef5d6b8a5d80a275fee01c21f971eb74aa8a772175f7d011a9723. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/DEG730113979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x757baa6d36972f7d2ded5e32414530639e00eecb33f471727bb8f072ee3038dc. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/DEG730113981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a0126b3508a136b396545dbecece4dbef8a5d243fb36b4d7f4b204a8739d552. 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/DEG730113983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b4dd727570f069a56215731df1430119862eb09a633758a1130a6b733804bbd. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DEG730113985.
Nationalhymne der Bundesrepublik Deutschland
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x821bbcb6b03109370509ac53ff6b3846eac09045bb525f018fe344574422fdad. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/DEG730113986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac637ae6e1f74a1ae1b6454dbdf7d4b1758be88cafa732aa562ef100f2b17442. 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/DEU241079946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01d7af293c1dce327b23f18fb16b975839d415db98f33373a4aa9c41d23b6814. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DEU241079949.
Blechbläsergruppe des Luftwaffenmusikkorps 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c7fa3a99ce1c9e16cb00ebc1cf580a542dda1da386b8d659c812bbe91249f23. 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/DEU241079950.
Chor des Kameradschaftsbundes Frankfurt/M und großes Blasorchester
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4994b1952e2892df3dd43b73764248ee20dbcd800c64a5bb0eff137552e6a11b. 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/DEU241079959.
Die tollkühnen Männer in ihren fliegenden Kisten
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe57af225f001c375d9bf03d27520e3cd1c4b1f37b6b5621ae1540069e71627bd. 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/DED810107820.