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 0x3bb51c10efccff533c90a72fd46fa666b85510e3e5500dc9209ec7c64be75bc4. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b571f593-45cd-490c-ac2a-c910a5d3c874.json and https://artists.proofprofile.net/proofs/artist/b571f593-45cd-490c-ac2a-c910a5d3c874.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 → 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 0x08cfeff6217c04be5e0f72ce5228f724d5ed433237d8f41c89b468e3f03e6b55. 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/BCJBY2400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed607d5d92918833c7cd061793d01785d2ccb3553088cca2e71c9664b1370b8f. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/BXL561700001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x525831a87420bad2d35eb3d0f77c8478f0154700881444c5fd3b6bb5c224f325. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/BXL561700002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8099a72c811864142fadf2373ba4b2e87a09a236a99df9991283ddc141987730. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BXL561700003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5ff88d30dd56becfcf3091107174359aaa781b008d258a15c0199e1b0a06155. 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/BXL561700004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8215e46539b18bd7301850e54d6ac5f5a5a4622e187a7b8b899d314d4d60aa99. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/BXL561700005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x186dd73e79e6822fb868fd044a82971a676e241bbf6f5bd7ceefb5d4ef8a742a. 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/BXL561700006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf64d4eceb835e5da833230de7fb8b2d7d0e60a7fe42cb4075e538717f044a2c. 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/BXL561700007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0159384a9f548d2a82a08fe0c180b0a14c3702fb11b9b603092b6128d8ac0fc6. 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/BXL561700008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf31a91571b0c8bfc032affeccf340cef0288fd49363025adb99cec2b2de73cf2. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/BXL561700009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0253b5d81cfd850b62413c1823adb41dbb0d847cfe5fc4e58e78136d92a0b12. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BXL561700010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x686bfc423f04d31df0f9349fd8349fe6fd636e0ae873fa8e92b051c71ccd8f11. 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/BRNFS1500152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44329d1c9b991ff84a6ebe324a594d1254a8e5fa4825c086f35e032053da3c14. 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/BRNFS1500153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7aebbb5242ba630cfbbc70bbf2eb7392053d4fa2c5547f637e2b3b97fa88f7a5. 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/BRNFS1500154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a92144b8dcc83db373f718f37deb4e3903486631f7b1894e0bc2ec11a6c93a3. 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/BRNFS1500155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f5be162543556008415d7cb168be3e651e486baecdd19d51b57c4d39f77eb24. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/BRNFS1500157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1264dcb6161d3e4e3301cda49af8d9522f2261611c9fba319881ba80364d10b. 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/BRNFS1500158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1318dea8d9caf7ef9602878e74f89885f599023f70eeabfa9f4cdf691298205. 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/BCGUY2000006.
Mestre Diquinho e os Tambores do Pacoval
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc7a5b9add3c08ac2405d577155d72686e2b44bd1efe776745e0b474522e8ea2. 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/BXDFR1900051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc686669deb64eeb559915411e91249ccb92ffdc1ba493dbac2e666757bd1ea66. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/BRGQU1900008.
Te Vejo em Dezembro: Som das Estradas - Sudeste
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d69900b544982e0e21f620e111c95da4131ff918aa0342f1e653e33d387c6df. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BXDFR1900023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0c982f57746f615c7629e5a3f936885600f50fcfb2d6771fc9570b9e143a004. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BXDFR1900027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x955101146bcc2c4f9d4ef322774e4ee4feb719ac91e10718d86a4af88480eb41. 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/BRTRB1991473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44d2dcca39e6581faab1525a96c7c2b0d61530f59aedc3abd74f7ff2cd3c3a82. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/BXCDZ2100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda6b0fbd494d62a92957b52cfe51ee34ede07bff3ec38fba4b6f0113320d3996. 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/BXS8W2000004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbaf9200786ab35995b2700fb3eefb112bd1a953c258eb9b1722b8e3dd137816. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/BXAAU1800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc24c373a3f5351ee10044832498ece5c533da7edfbf942d96ede5f09c480984d. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/BXAAU1800006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83da8762e27fa11c4402cb876959c7cd6fd2b7eedab658bd7ef5cdec43b7ef14. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BXAAU1800008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbbebfb23271b89bedd3700ad59962c4efd0190f7c5321d4d313d7e6b5d02730. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BXAAU1800010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4058b927767ddc7af652a39eff05ca3fefd49221e2cd5091150ac2969e92c71a. 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/BXAAU1800004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bea039571427f44b10ea0cbd35d2c25e078bb3103fea0bd860f24f888bde24a. 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/BXAAU1800015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f4e6a62172ea519f0b83927feb0f171d0d423f0ca5f78c3f8b9517eb6d8e989. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/BXAAU1800016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74ae27b3ef6b7c7980acb1c5eb0cf5188bf24f255e9ef642f51a352d8052b6f3. 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/BXAAU1800018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf14ea7c51ae6e6acd0a4ad9ba0510290dc54e861c87387e8c55adeeea2de3050. 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/BXAAU1800021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11a887b3b5ac52f814a58a0f6ea9ba2fb474bb9ba1f271fd5ab8436c5c9afece. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BXAAU1800022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3aaf9d5adea264a9df0867666735ddbb96f64b03c47bbc7aa615be93a915028. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/BXAAU1800024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x457d86e9b21edb14a8ac4d5d4b8523ea59d5febe3319015904f2b95e90cca63a. 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/BCJBY2400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7738b6dc39e9ee4806421dcc5c6d8d7040527e8ae8cc6ad60ed5ebe0791ed29e. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/BCJBY2400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2c6a58c3ea3b964ad70e751f581e3041faf0bc4ea22a087f4749beea61bc2be. 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/BCJBY2400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x460c93c86e0c936c14b52d6c4fb2b76c6b9989936155a756e338bf1d59e7944a. 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/BCJBY2400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2928504ec9ddc0b4b67b90a48ee783b89b2395d9b5372bd2303f077777610502. 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/BCJBY2400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08cfeff6217c04be5e0f72ce5228f724d5ed433237d8f41c89b468e3f03e6b55. 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/BCJBY2400002.