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 0x5ac25e90ba272d93215bd32cdf9f742b27121cfe3099b1a1732476f6db22c581. Chain 2 (Bitcoin): anchored in block 953695 (2026-06-14T21:42:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6efbdcce-5a2e-47aa-a432-6799b8a2ef42.json and https://artists.proofprofile.net/proofs/artist/6efbdcce-5a2e-47aa-a432-6799b8a2ef42.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 0x09fcf6c374e81f242ea77d9e737b69291adfe878085b4460729bcc8e3c371514. 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/USCGH2537073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88c02ae90724723f0e43c4c652ff344054a593c105a50f17fcf285e85722512d. 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/USCGH2537074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8de2e2ef9f56ce29fd847353af0501b8777deedcd23155cd6ed8f0ee13fb7b49. 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/USCGH2537075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83ccc6e7d29a4b0de355a79da137532e2befacad9fa6d08f8e60eb7ddaf952b4. 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/USCGH2537076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f34bc9988211151474b250992e1fa7903a2ec8a38cbbd108a79a5b1f4dca1fc. 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/USCGH2537077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x093eefa5fe3750d999fe9877b30cb4ee2b708ede6a0b797c779840af50e1103b. 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/USCGH2537078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ab5e8a2b035b3a021e512a780657d5aeebb607cb49004cf33979fb3e0dacbec. 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/USCGH2537079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c980abdd477ec585bd9c38cd60c45b5e420562c83727a46b890e995795e15a9. 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/USCGH2537080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ddc5d22b45bd8b2d0322b8aa1780299a06a119fa74b0c89d550f4c87c751991. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/USCGH2537081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d37e735b295fa8cf9fe3eb4b99b4fad6ac56d0c3fbcf8b151f29889d0bfc59e. 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/USCGJ2242209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x039d0b54c50ae6cfdf6a2bffe0c6e8ef18e65e4855905d935b156062e15102c5. 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/USCGJ2242212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7586af341797bc3fa1a7e32e34b53d1a7e5fafa21bba79f8d21d54cee03bd454. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/USCGJ2242210.
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 0x9091bee721f9f4164e5ba2ef7888b236b0d1679acc4532937679ec745052bdf7. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/USCGJ2242211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6cf0ad666e0f97d641fc9ba7da687cdffb6f1c801b0c719c4426fb59b6b3edb. 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/USCGJ2242213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcda54c898b7fffd12125b18ae20eaadbd23449944e256ebe1514a99af61730b. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/USCGJ2242214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66a2dedbfd0fbcc11535434122920728639230771812dacabb79b3d04e16ca87. 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/USCGJ2242215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e0407dbe6d60050cdd4f16a968b3103fa814fb7f6c129b02f7728975a979592. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/USCGJ2242216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cad19038898f7312d0f5d47ac9fe8ae93f4b32a448e2c8c95030991705e0b85. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/USCGJ2242217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe3062c029c4b90aa358883224258ea660e5707508235cd0aea458b3a38fa4a4. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/USCGJ2242218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98b3037f065f196f328c2370096184b3997fc4a3b8a7079e77c2ae1deb228640. 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/DEOM31700532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe86bf15a6449d5c4850e10afda8073b863bab5bbaec6575f266c313414560626. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/DEOM31600275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd556aa1e559dcccdc7c84ba0b531848129d4e9c23a7e61cd04646ec20fec69a3. 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/DEOM31600278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe54fca041875bd64f3416522a8449e9461bce599f4d6703fc8e7f253395f5908. 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/USDY41854650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x091460ebff9dc35d68da781b1cff1d59fb3aae1d70e4d7b10a9dc2dde4cfeef8. 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/USDY41854652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4e10b767187524d1408b315d3ab1bdb03a5aad8aa65489f7dbef90b161504d4. Chain 2 (Bitcoin): anchored in block 960314 (2026-07-30T21:00:46Z), 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/DEOM31600274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaebcae379b985f82ad091786e3a7b37792a1f42cf7bda1d5764c672a1052e887. Chain 2 (Bitcoin): anchored in block 960311 (2026-07-30T20:45:02Z), 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/DEOM31600276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5fe8705f0b03d4ae1ceccb2e0906a3645ae9693e20fa518487c6489e84f67b5. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/DEOM31600277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4909e97eb6655658b51c9e629f285291b8bc2cf15285832f8a408a8b955da07e. Chain 2 (Bitcoin): anchored in block 960305 (2026-07-30T20:14:59Z), 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/USDY41854649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd070f581fcaf131125781f11442ba69c3b64d179319a42e3e833fa43e77cf2a. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/USDY41854651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x097859bce4f5dc5f81b6138d234e3dfd441f3756895ac52429ae5ea1bd9177a9. 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/USDY41854653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b359e67c6f80f0dff86502381cf718c3e31daa4417340c16ce4bffaca67095d. 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/DEOM31400101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x129b149157241a188b3f21cfd95e2b3383474e726723a48cd97dcac2cae770a1. 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/DEOM31400103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6387bcfeadb0ce2e1571bfbda5d92583dc2ed0f1a5ce411a63389dd4cb2d3d26. 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/DEOM31400104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf014dbb934c3dc78349852b143b1f2557343d99a2a8b472925ca1417ad1c49a3. Chain 2 (Bitcoin): anchored in block 960314 (2026-07-30T21:00:46Z), 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/DEOM31400098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcd92f5cb1ec28aff62a87883dc03b8c7177da14476253bfb10fc5ad4ff09637. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/DEOM31400099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0848af6a8d3a7c7792d3806bd1f85b97498e6e5ebc88f3cfdb5d7e7d2ccc56f. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/DEOM31400100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3b43a99338ea02c8f8e4ccf3df5e140266615c2e44c8bb14ecf78b4662165dc. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEOM31400102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56ef842599042e0ebd6c6fec7b6530f9ede1b8c58d9b24ed5382c5bef2966702. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/DEOM31500219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb07a5e491faeed4faca567d4397f70b46c53fc358335834ffacad6f3a767f34a. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/DEOM31500487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b78282ff8ffca6131a183354f00617de65cc2e46901f05ba2202c1d812e32af. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/DEKM61304061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaf6fa997e833f5e81bc8a9af35477577e3b5f0bb8b923d44d7eae9f313801a4. Chain 2 (Bitcoin): anchored in block 960513 (2026-08-01T04:52:22Z), 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/DEKM61304062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca3a1c45f5c227e0df67937bb5578b327c08a63457d0f9b6e4844be95b7f5031. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEKM61304066.