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 0x46cfefb5413049d095497faa497482731767885e68ec14b3770f33c87b0c164e. 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/686d3e38-c091-4202-84f9-8522e868baaf.json and https://artists.proofprofile.net/proofs/artist/686d3e38-c091-4202-84f9-8522e868baaf.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Dixit Dominus, HWV 232: I. Dixit Dominus
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 0x114881e07893ab13bb7ce7ada780f7c6e14f50c4d2a18a2c2d2fcabf05a2d7cf. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058703341 — a six-check JSON result.
Dixit Dominus, HWV 232: II. Virgam virtutis tuae
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c48b665d6db114a64826476df493fa000018f3feeb0c576cf8cc30856f80367. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058703342 — a six-check JSON result.
Dixit Dominus, HWV 232: III. Tecum principium in die virtutis
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x551b8f31ba38c88ec36a57097b5c14c6fc0ee2e945222b9d47a47067672d389b. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058703343 — a six-check JSON result.
Dixit Dominus, HWV 232: IV. Juravit Dominus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43cbc1a5f38c2569937d014c88eb1f03017b7f71986cba02d14886df9cac358b. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058703344 — a six-check JSON result.
Dixit Dominus, HWV 232: V. Tu es sacerdos in aeternum
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa9e84f29ead7be985bd9c20dc440d6fffca290be2d80981ccf77431a1d15543. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058703345 — a six-check JSON result.
Dixit Dominus, HWV 232: VIa. Dominus a dextris tuis
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7320e97253b3f324def1d677bbce3f8e55deb1c76cfb33811dcbcf0061630765. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058703346 — a six-check JSON result.
Dixit Dominus, HWV 232: VIb. Judicabit in nationibus – VIc. Conquassabit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc96ebe827fbcd8df572bbf113c3ba4251639b2a0c3e752e4417ecf33e4ad600d. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058703347 — a six-check JSON result.
Dixit Dominus, HWV 232: VII. De torrente in via bibet
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c6ef269c81f0cf8eaf25bcf249805296fc44ad45a6aa5501341b8590172244b. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058703348 — a six-check JSON result.
Dixit Dominus, HWV 232: VIII. Gloria Patri, et Filio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d9be4ac9b66f99e7a5051e5333ed697b627977f6f49b7108006ce934186ae9b. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058703349 — a six-check JSON result.
Nisi Dominus, Psalm 126 (127) HWV 238: 1. Nisi Dominus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43f9151e1e67134b136480b4e639c76334d6b8a9dd689c0f1c8d6f89a1fbf76f. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058703351 — a six-check JSON result.
Nisi Dominus, Psalm 126 (127) HWV 238: 2. Vanum est
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x591bf3e462f8441aeed224e7553cb8b0939a2ceb5f17b84c8fbcc41622e146b7. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058703352 — a six-check JSON result.
Nisi Dominus, Psalm 126 (127) HWV 238: 3. Cum dederit dilectis suis somnum
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2535af6fd00947cb11c8ef44533599147b8bde0d052a1d3b280ae8cf22d88aa1. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058703353 — a six-check JSON result.
Nisi Dominus, Psalm 126 (127) HWV 238: 4. Sicut sagittae in manu potentis (Allegro)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d93d568f4e92c5d92fc737097332fccc31a7d8e40dcf163c13238a568f287fe. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058703354 — a six-check JSON result.
Nisi Dominus, Psalm 126 (127) HWV 238: 5. Beatus vir
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x876b54e5a868841a20d4e3bc495270aa45fa69fbe895afdce3ecc28c2689b34f. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058703355 — a six-check JSON result.
Nisi Dominus, Psalm 126 (127) HWV 238: 6. Gloria Patri
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a3ac5e66c2945577fffc79240ae3318dafca05eda7829fdbeb383d6a4dfa04c. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058703356 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89cbbcd0aaeeda64066f18e78043a554138250d32a38f36b58384d7664c047a9. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058703361 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fc8c9796665931a8daea490db667efc071a0a87cce0ef9a86dba75d6bbe43a9. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058703362 — a six-check JSON result.
Salve Regina HWV 241: Eia ergo, advocata nostro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9370df5f141812c64c29a92c589846af0a85be62029126c793ef19a808233be. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058703363 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a5783cc7b87330612f1728991dc960b2d2ad5c6a12d77b664b295738aa9b264. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058703364 — a six-check JSON result.
Handel: Dixit Dominus, HWV 232; Nisi Dominus, HWV 238; Salve Regina, HWV 241
Dixit Dominus, HWV 232: 1. Dixit Dominus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x114881e07893ab13bb7ce7ada780f7c6e14f50c4d2a18a2c2d2fcabf05a2d7cf. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058703341 — a six-check JSON result.
Dixit Dominus, HWV 232: 2. Virgam virtutis tuae
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c48b665d6db114a64826476df493fa000018f3feeb0c576cf8cc30856f80367. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058703342 — a six-check JSON result.
Dixit Dominus, HWV 232: 3. Tecum principium in die virtutis
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x551b8f31ba38c88ec36a57097b5c14c6fc0ee2e945222b9d47a47067672d389b. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058703343 — a six-check JSON result.
Dixit Dominus, HWV 232: 4. Juravit Dominus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43cbc1a5f38c2569937d014c88eb1f03017b7f71986cba02d14886df9cac358b. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058703344 — a six-check JSON result.
Dixit Dominus, HWV 232: 5. Tu es sacerdos in aeternum
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa9e84f29ead7be985bd9c20dc440d6fffca290be2d80981ccf77431a1d15543. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058703345 — a six-check JSON result.
Dixit Dominus, HWV 232: 6. Dominus a dextris tuis
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7320e97253b3f324def1d677bbce3f8e55deb1c76cfb33811dcbcf0061630765. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058703346 — a six-check JSON result.
Dixit Dominus, HWV 232: 7. Judicabit in nationibus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc96ebe827fbcd8df572bbf113c3ba4251639b2a0c3e752e4417ecf33e4ad600d. Chain 2 (Bitcoin): anchored in block 957057 (2026-07-07T15:21:38Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058703347 — a six-check JSON result.
Dixit Dominus, HWV 232: 8. De torrente in via bibet
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c6ef269c81f0cf8eaf25bcf249805296fc44ad45a6aa5501341b8590172244b. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058703348 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d9be4ac9b66f99e7a5051e5333ed697b627977f6f49b7108006ce934186ae9b. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058703349 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43f9151e1e67134b136480b4e639c76334d6b8a9dd689c0f1c8d6f89a1fbf76f. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058703351 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x591bf3e462f8441aeed224e7553cb8b0939a2ceb5f17b84c8fbcc41622e146b7. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058703352 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2535af6fd00947cb11c8ef44533599147b8bde0d052a1d3b280ae8cf22d88aa1. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058703353 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d93d568f4e92c5d92fc737097332fccc31a7d8e40dcf163c13238a568f287fe. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058703354 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x876b54e5a868841a20d4e3bc495270aa45fa69fbe895afdce3ecc28c2689b34f. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058703355 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a3ac5e66c2945577fffc79240ae3318dafca05eda7829fdbeb383d6a4dfa04c. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058703356 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89cbbcd0aaeeda64066f18e78043a554138250d32a38f36b58384d7664c047a9. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058703361 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fc8c9796665931a8daea490db667efc071a0a87cce0ef9a86dba75d6bbe43a9. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058703362 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9370df5f141812c64c29a92c589846af0a85be62029126c793ef19a808233be. Chain 2 (Bitcoin): anchored in block 960300 (2026-07-30T19:42:40Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058703363 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a5783cc7b87330612f1728991dc960b2d2ad5c6a12d77b664b295738aa9b264. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058703364 — a six-check JSON result.