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 0x03f5c752c2914253e1ff11277f8fc5336ffc1837944484bbb83c78bfe888f000. 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/df6a7640-ff28-4d5f-9ef2-8bbe86bd5e5d.json and https://artists.proofprofile.net/proofs/artist/df6a7640-ff28-4d5f-9ef2-8bbe86bd5e5d.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 0xbec2a4c68a2b3db8611204b3bef011e70dc6a918d961a0bdd966779162b8f318. 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/USANG2272509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa7c5bd28f1b2ba70972e719a234ace193ba8ab4b48fe27ccf85d1b6c849a184. 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/QZFZ32301879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02b0765eeb4c2a741e015eb9939d47c49598b6768557e46f7cb51fc25df52c97. 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/UKZGC2201574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc125d6865133f746c79003af7a879115a2802d95f74cdd986a862e1bc49a5f2. 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/QZMEN2276193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacfa512791be8dcb7a5e8de35361a653097d21dcb970cd34ab8648fedab4e6fe. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZMEN2276192.
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 0x464674a9aefd407159d855ed6b4265ffd2bf3585662b9f4c82d3a0f63880f607. 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/QZN882226130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d0f4e49b890ed615df56b02f2d35329c071e98b91b2f2da7ef2ab064c0c66dc. 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/QZN882235991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dd7c287cd8f3f5a06bd478103f3585cbff4584d1dc95d13d286af9d3a1e5ad5. 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/QZN882235993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96f1e116c73fea44e15be2f25efa63dd16e9ec4f220a5699befecb30c97976ca. 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/QZN882235994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6419885446566830a9948aea0c2a92f16a8a32faedef414e406e10a7a04a61a. 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/QZN882235992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf204aa8d0c49f57259571ce8797abcb7e62f99211ea5a561e76bb8a395f9fe98. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZN882235995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24e2f0523eea89bcd2ac5c2920538d3fe7c0c04b4ec37da8be0afe7ce695b6d0. 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/QZES52274041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb7065c58fdca13b769f3e09821d93a06a8c72ed76e0092c0a7ba6a51e6c2b13. 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/QZTAS2139943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36da5055c036bb319679e889479a8fe9d0fa2b455cfe40e18a17ed723940ba79. Chain 2 (Bitcoin): anchored in block 957065 (2026-07-07T16:43:21Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZMEP2135164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27f6c5f62bef991e681a1e3489d0659af6714cb5cf8a27d2f1c1cc87387beb45. 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/QZHNC2117816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb17e5cf236daab20ef846d628517b16a1f2054d18ace84cccdb73b309930aae8. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6P2171823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad92131226929aede97dae8e773ddab9c4453a04c645d282a3ed57c85eae8f08. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/QZHNC2117817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad01d268b473849477e7f7cb766f6c49d545f2c6e420958b60ed925b20f2df76. 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/QZHN62161372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa5726c9cee4bdd0ebf0c019b7456b00243fb96f3062ed25bb8c4af06f64078b. 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/QZMEM2054780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69b3b07842c87bbf7211523c7bba8a1a47bb05dc282c5eb34fe257906d6b3435. 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/QZMEM2054782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8610ab8b6a09b8b93f82754b799ca394269ad056bba7257014ba1ee46bb1aff. 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/QZMEM2054784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27bbcc07ba17a98d6018ed69f9892b8ed8006b6fe539c322e6722d1c51acdb25. 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/QZMEM2054786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe37d5a008e3a9325333cd9d511bb4e3827941361ddbf4bd587b1e003986a6368. 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/QZHN72092412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x933b65635c3c4229602e9b32ee30bdc66e30e23964c2238424fad3aac04d5309. 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/GBKQU2184023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ed71cc3a013cc043e36cb171bdcf7adefc7c34753b32ef38dc6a335cbcad3d9. 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/GBKQU2184037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf2c3eb83eaeb1d8218b4734c51ac20c5e3dbcddf192b18ec2562ff2fea4b111. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBKQU2184036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc764a686259694a4b3ffbb2a7f5fdff6dbf0163033390d1b97d7c6d5dfb04c83. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBKQU2184038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb26838b090fed5793d707463f02a7da558f33231be3476a8b8d07d071d62db97. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBKQU2184034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc23759fa43273165e04d2920a6c94dd0c15cd828aaddac4eb241af09118640aa. 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/GBKQU2184033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50eb6e40cd22e60cd1780fe0a1fcefc80d6b7698ec1f5caf15ec35523b16df40. 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/GBKQU2184028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90667390225b9f13c07d676bafe9ad0b023e5974688dfabda9354264c86c386b. 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/GBKQU2184026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ac7991fa8651b9ab5ea721be53dc006e26410575108b95543e28517cf5990b8. 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/GBKQU2184040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ccb29e6a4de45f5f6a3fba17685ba358a2153cfc38f9974e8eac200970ad6c7. 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/GBKQU2184030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x280aa8826a47f572fdb65160281d1986912fc3749d3372d5224122d90c672f12. 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/GBKQU2184039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13dd9ef6dea26bb88e144b4d9b49d23c88371cbe2142effd14a0e5205aa05cc8. 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/GBKQU2184029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x243e79cf0b7b57b95fa3f5673d1268c1cd075846a532e203b399f6fa23771eaa. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBKQU2184032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54ed9ec8cdcc45e420d7570b31ab62d5dbabdc6cba5d5d3f7f2866d99901a074. 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/GBKQU2184035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34ffaabff6892fe71d5c03f0da6b6296b4ad6c79556d516e2a895e767c6e3fd9. 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/GBKQU2184025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51909f4832f4ef918976620994d2777955a447b2506035af3c0757c9cd83a377. 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/GBKQU2184031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e3a16d42fd82de38a86abd0a5ab42768ddfa0085a3a68db424ec0b755488815. 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/GBKQU2184027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2952f3156643640bc11ca934d4681ffc614b2f0d2f5548ca0941afad4d9c4e5. 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/GBKQU2184024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacff666d6e9863909ea3a38d605a95b09f47e5b1c8492606c5ecb44713f58756. 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/USANG2214282.