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 0x051e2e809a191c6704c9a7ba70281dda5e087ec4ba67bd828a9669fe6becaf69. 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/046cea66-345b-41f8-8205-ac790d51b58f.json and https://artists.proofprofile.net/proofs/artist/046cea66-345b-41f8-8205-ac790d51b58f.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 0xa94a0a8892ceb517608e8ec0c7f51f0457150ef5c006c6831ae878313f96d4dc. 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/DEZ651723229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x749c71ad01b46ced0fffa18b05b3b400c7f98b5bd15955de139d00febd29892f. 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/DEZ651723230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x553723133e3b9659d90ae8865c56d65e8075df456c7a4d61e7f28b04f514de87. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T17:43:26Z), 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/DEZ651723231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd07ff121af2a09bf66f7fcea496a0a575441d3d5e70e6cea21077677b7688ed0. 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/DEZ651723232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a6a44d00beb691817785601372bb2a36e21315739922867f753e1c12ce8f912. 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/DEZ651723234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a3cbef62c8b1e0d8e0033577e5f4be493b839996b7d2c5eeafabc6d13fcb5a5. 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/DEZ651723235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd77578cceba3bff5857ceb4d6ed900606302e459caa62b5143c9f4bb5dac519e. 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/DEZ651723236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44c0acba8e458a03ec67bd259e8a8c17535695d3c933fe5ceea2ac67cc62c61f. 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/DEZ651723237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe52c259498e64eef0de2250daa2f586147a00647c68d10c60695587e285ee400. 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/DEZ651723240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73c16af4be99c146916e205ba08eb6446f1213c63deccc7ecd1dcbab2750c075. 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/QM7281861302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe56dee4a48f3d79cf1f862722c7e4f7d88101dc4ff5b270171bc4798da2b30ed. 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/QM7281861303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d76ff3383174fa6efa3668a124b104c868a8b6c07b80f43530ddbc30744226f. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/QM7281861304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4a15e4751fc2bde1850014c323c012caf4d60aaba64d8841b36b794dc59037e. 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/QM7281861306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7be0bc0f5fee866e31ad4e05a52977e2bd89e7124c136e854c5306687bfcf2c6. 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/QM7281861305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac0b5b4415121838073b595942f476a06c0143f96504a41b732cab810995ef95. 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/QM7281861307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27402c376fcc87f86b7d60e7f6dcd767235da3f149b710465a20fcf4ea9ec671. 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/QM7281861308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc36abd3c52f047c783e44b53e39950daaefd58c0db006bed209e970e1cd52c9. 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/QM7281861309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe33b63843d047c3ea328125d91d20e356f0375d23f11ffac61b8fd7842c16a28. 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/QM7281861310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ad5e2a9e470ea05c4c3bab9768e87bf8f54ebaab40b180205517ef45d63d995. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/QM7281861311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54721659a2b71002c58c241d1d27fa97089cffaccd1528546169132737c0fe9c. 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/QM7281861312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03c1ad3518d0df9c99cd0e7376357d9b5adb59be76d2da0d8960bd7ee4756ba6. 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/QM7281861313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03f3c311e538a94dd32a876791312d9106cfaed195cce1b30c81e175ea98bc80. 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/QM7281861314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf438e826163107cbbb6d30a9ac9ae911396515b7e84d609fac5c74181112f06. 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/QM7281861315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x858b3c0c3d63516ff14d38ea50d8604c8e2fa1ab747aab59a376bc921bc024cb. 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/QM6N21846595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95234dc665ab945c447fd85d4b416717b944e567b8ce7de514f2a431efb7b4b0. 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/QM6N21846596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8998ea8f35131e76879462c2c3002bf5d0378229dda882ba8734a318c539274. 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/QM6N21846597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42c069b756141f6283321de9c6fd4fc0c20ae112eb0b6125cf4d325362a0fe18. 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/QM6N21846598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10bd1051fd0c194cd79721f95b3597b296f54269563beca7fc1fb1360f2cea1a. 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/QM6N21846599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92d889637a22aa3b8cd4c612decbdecd70ced6d985c4f89d47a783b8bfa63370. 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/QM6N21846600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33642908bb1ce1eab44bcf2f7195a09485c86a5778c4133b8ccc1e0ab8e10cdb. 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/QM6N21846601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b313facdffc35dd7717baab13499881bc2d31fe3abebf15a4aa1f29b104162e. 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/CA5KR1980178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x795f0e3caeb18dff4f22bde381708c19fec5da2cbdb6e8717a53d4f547b4ea7c. 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/CA5KR1980179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf61bbe1fabd4ac2ebcd20944080316c144356f137ac7a28a84b6a1ce7951946. 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/CA5KR1980180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbef88143e49fa1e5e02bb61151e005119a0c4f903b0168d5587d3702446dfebe. 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/CA5KR1980181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd55cbf966aa2dbb19fd4967abc1ef82d7166657a6addb4c92ff10164200b04ff. 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/CA5KR1922833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x996b93a5436a602e84de1160455b5b7b648af5aed2a2b77f605489f1b9afaff9. 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/CA5KR1922834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92c4966aa91bddf69704012be1f72df6121717b37a4376591c0c92f1820e0397. 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/CA5KR1922836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf12bfa6881affcd34b12bf46cdf08873ac33e903569fb64fbea53ebfb90666b5. 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/CA5KR1922837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec52cd8d5d02f07e8bc2bce1ed8a2391e8a8284e71eaf18e0dc7c61c7de4ae04. 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/CA5KR1922838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x408fe8d680f964f9a88c5ad2e73710d8aa5fe0b023df9d0d1d7eb7a0ae467023. 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/CA5KR2073093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4620f3d1e84bd1092e3c086e1cfea3465403eb94066c99eaa1e7b70950297cc7. 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/CA5KR2073097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf58e9c3af7a0a45eb22c6123b40f2624598c0634364999ee45062ff334f3449d. 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/CA5KR2073100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52e3ea61481d2f58975b1975492564d2d2de9a24667ee75964fd5e557b9b9395. 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/CA5KR2073102.