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 0x225c12f39c779fa23b994349490cb32168deeb1e9cf47f99c1cbdaed0f2860b2. 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/b5491938-3f18-4a8f-be91-eae3ed5cc57f.json and https://artists.proofprofile.net/proofs/artist/b5491938-3f18-4a8f-be91-eae3ed5cc57f.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04d512be630777c2f60d5f894a3147e7b17c76caad0c552710fc2ffbc5407dc8. 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/TWAA71900355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec98063abfd2ef1a9f7e61301af980cc89c548f7e666360a279629da4e064a84. 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/TWAA71900350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec98063abfd2ef1a9f7e61301af980cc89c548f7e666360a279629da4e064a84. 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/TWAA71900350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb466bae157221b105ce12bc0ad3b277811e5c8b2c1e2778488938248430e9c25. 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/TWAA71900341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b770b4bd7c7c68b332292f2bb4b1fea753b1962d7efbb011723bc1882602dd2. 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/TWAA71900342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50c71f27b6edf6ce00c98c0c019aa264c2c59558adbee648f5ac7ebf70e984c3. 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/TWAA71900343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55c3e0796ca45321bbcb90a767ffd787319cefae1779c36dd83e51692614ac7f. 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/TWAA71900344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9339f4874f5be0cdc8307b49a704988ce05fd3ebd1120e52330af1fa15842827. 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/TWAA71900345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53355858e9a90db6d4c511c63125224574fb322685cddfa036268b8c7e41fd40. 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/TWAA71900346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3620cd8ddaf6a481094510efe5d4aa549f89e1ce360dd2963b5c7daab067c28. 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/TWAA71900347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5552377d3d2bf9a3f8209226754baeada3cf7d6b623de64e41bc314bed93abfc. 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/TWAA71900348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x397d2dd1b71145343397b942236ef9f49ffca28f191865f6f37b29df41bfaf97. 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/TWAA71900349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec98063abfd2ef1a9f7e61301af980cc89c548f7e666360a279629da4e064a84. 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/TWAA71900350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda3d71ae5d89575de9976d72dd72d7663b2b1d670eb9795e01d3c5abc028a14c. 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/TWAA71900351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a4d4f7e8bb2ef98cdbadd28d3283319113488cfb1f25ec3dea52f40bfd18813. 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/TWAA71900352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14fba42ecf4e41359cdc3b41895af2aa20b83733bd38815f8c2067c821185b83. 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/TWAA71900353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd33ee2edc557c76864ccac878cfe16d0133f6d2ef94ec2223feacdde91e89d13. 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/TWAA71900354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04d512be630777c2f60d5f894a3147e7b17c76caad0c552710fc2ffbc5407dc8. 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/TWAA71900355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22286ad81d370e0e56f04f42ce7bf2b2465646cf7e34cd3cea483f45a235f94e. 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/TWAA71900232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6a982e237df3796baed03838ef0777d121e5eb1e48618406c718b6ad3f1373c. 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/TWAA71900017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6a99f0f28f2da0911ee5368625284d59a37fe6685db0f7f379f8ce1326a8faf. 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/TWAA71900033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf781f194e2bfda9efd5c8133e93c2056ba3e4017168abcd0ac7006cf061f5e3. 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/TWAA71900035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09a7331e97a7a0d8006bfbdcdda86cd225128bf396d96b8a78825a0559a809bc. 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/TWAA71900234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0036177e999cc154dea22fbf77a3fcf57453208fb4016cdc2e22c4191cc3c73. 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/TWAA71900235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dfdbc801661246106b830c22c8a88f8a29d5a70a5663f9e004b52b423aaa515. 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/TWAA71900236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc6acb3fc147b992f623e5b33b935ed9e94bafbf968be72636497dc4527b614b. 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/TWAA71900238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x217ab80e4ba4c5c05351830d9f766b163eb4ba5f49d9da5eb4b6d06dfe430f44. 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/TWAA71600098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6963c1bbf96de409ff9188da7043284c71fb2deb926dbc71f75cd6bd1dfafacc. 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/TWAA71600099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb83b0b26b9cc93306f37e69b1726f0f8f08b1f0a5c527c0f99ddc7e61e619210. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/TWAA71600100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0389fff2683fed7eefd337cc083f566c46442f9b0347990636f06ab2a33be53c. 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/TWAA71600101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51a4365b9639dc3c3343c8c0698e5cd7aaeb2e8d31f146d8e3f78e2e2fe77f4d. 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/TWAA71600102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d05ea06d8f1ff2d43c89bd642a95f4a3ecf5b0c4ca04754dd263f3ca90b8f58. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/TWAA71600103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7f55cb2ca3178386f28a1783c63db5c9dd0294d165cf4c976577eda9bcf8102. 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/TWAA71600104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11b93a3e3d0b5248bbd2d12edf56190a37bc27c5b866b5e9d99e6fb3f8ad3a58. 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/TWAA71600105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x591368fdd5061bdeff40ef3c9462cb15030a3ca3a31fd56b2095235d56a32a80. 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/TWAA71600106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x559c03892aee288a3270e1e349e4df9892067b32c4d76eed0941e8fafda1c3e4. 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/TWAA71600108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9e6011abbdad2115fa53640c3d1997eadab7d779b6fb20a0fe590f0ceb6e519. 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/TWAA71600109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe2cff95fc848a5904ec318bf99b1c67148f1648134704bf728363bd1e94cb32. 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/TWAA71501510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb6d3678e4f286ca2832246a4fe93296ff46703677adb79ecfd7afcff9f2b9e5. 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/TWAA71501502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7f1eae3bd336c27552101c1c0a79ea1ae011b1660f4b7f158739650ddebe251. 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/TWAA71501513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x651f5d2691135654a5a82a0dd6a46b2592533b0fad177ab5fa3bb712d38a8441. 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/TWAA71501512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x171c1b716b96ceb046c3342e6f237ebc766e57ff377e24e0a20133897ab16adc. 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/TWAA71501493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f5edc15c50b3eedc8407f63d0fefcbe5bcd1187b2098c2266220023b35af352. 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/TWAA71501501.