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 0xeed811e7702815d7e4cbe3da182205ddfffa0e744836c1ef58972d6ff1980396. 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/1575a363-b2b6-457d-a2cc-08c71bbf0d91.json and https://artists.proofprofile.net/proofs/artist/1575a363-b2b6-457d-a2cc-08c71bbf0d91.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 0x030dabc5122adaaf88988ddcd405c690c466f26f379830a643f4beae903222b2. 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/GBMJG2324409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4f5e5095edff021b6a8acc22c7c455577a70e6fba3578b4adcc0e2e060bd326. 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/GBMJG2324410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97c8545e176b5de325e434e74ab3aaf96a889a6d4ec46560bb9846df5e28d3c1. 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/GBMJG2324412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1686cbb198960c27df4959f347299189b27a492db2f3a2076869aa62edf6760. 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/GBMJG2324413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83e71a624bc1bd21dd36b2dab81fe5188e46ca86f5c93d7759528f80e3a6f6d7. 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/GBMJG2324415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62045c6dcd97ef8e3b1ca729f356a0b4a3b51b5043e08b394e5d357628a0ebeb. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T10:28:53Z), 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/GBMJG2324411.
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 0x8a4f55259c0794fa77832c4b962f3ff0fe8bff6ffe48d84207e920a718e9f813. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/GBMJG2324414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb2577e7dbac9e79ba3496084015ff953304e03d4b841a9bc2120622825742c2. Chain 2 (Bitcoin): anchored in block 960101 (2026-07-29T11:46:30Z), 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/GBMJG2324416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd453e62e22d8794b6a2dde3c1c64a8904a80fb92fbee14a619a25f7a2adaac71. 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/GBMJG2213239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3534e5f0323d8640973e45cfa2d0bccfbed48151e7526a45990a4ee7902620b5. 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/GBMJG2213240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25fe35fefdcb04fa36ba2d34a28968181164c3bb4bf8ccaa16dbb5b5eb55668f. 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/GBMJG2213241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef464e08798dc1f13d016e745d7bb58aeeea88fb3af7366d5829d656d55089ec. 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/GBMJG2213245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81e02fc5acd752bc08f4d3227985c966d79b7023a18b1a9e0496c47379f6f60c. 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/GBMJG2213247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5daebe98ff05efd16f4d56ff35b476ed6be2b175e6e076be5ff2d448fd7ba947. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/GBMJG2213237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xceaad855e600496f4ffbc168858f1e1c17478e3d18a22d7d85135aeb25ae6d41. 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/GBMJG2213238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd479bfbc3a38791980f23f05a93e2016a7b570f1001346409c19039239731789. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/GBMJG2213242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeec80b5caef21813ac980a715fec2cc382e01606abf21451e5a7f2a2aa10fb30. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/GBMJG2213243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad79d2b1b814fb758a6c117ba0870965a6ab328d31d6cc22732571f87f3aab9a. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/GBMJG2213244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f01958d8d3b3bcc02a6d07357ef71f257d3f1cf5a5e40f0d7cf89b3f60a5830. 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/GBMJG2213246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e76eb36ea8eeac9f5a0378cd3b3157b20c3f017370a8c3aa90d1c5dcaa95d9c. 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/GBMJG2115289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9676577a4325e58846f5ebd88eee2016970ad1faee9a9a80ca42ee7e7763203f. 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/GBMJG2115292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6420479b8b7c9dbe707618418c44f7dcac4267388b5cf533220e8fc58503fc4a. 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/GBMJG2115294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2887cbdabcade037fd9b7b1c03efcc2f8d7ef7a3a92d27b90749363557dd780d. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T20:25:25Z), 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/GBMJG2115293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f8d14f4330ed2b1d11f50ba52fbf46a0ea0305ffafddc23d1ef3e1774dc860c. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/GBMJG2115290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fef7ccbffa6076694cf485f9e4c7c99738052b9483cb35429592d382b5846c8. 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/GBMJG2115291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08ac8519446ea0558e459809d17ba594d72a2a5bc646051497245d9b8274ddbb. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/GBMJG2115295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc7e3f23a594c62edc218017679260bc8155226f1faefc62d15bb7e7674a7592. 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/GBMJG1902644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb58ae9306521570c9140f40ce0b55077bb754b26cb77bec56bd167b6adf1cdb2. 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/GBMJG1902645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4826049255184b5b9482e4ca481974b1bffcf5c392c624715b81f53a97c427f7. 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/GBMJG1902647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58106bfa8b5260135328ddec9979d29cb06b66e1bbcff3ffcc7dd3de83567b07. 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/GBMJG1902649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e6f5f42e2115ad42d990d422c4b460f838224a2062aca7885be910728386784. 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/GBMJG1902651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d1ed8ea0754d5b5222b1c069adf24bfd7cc4062167924fde27de32bb410450b. 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/GBMJG1902646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2342392646a5493a1303d0b006e002f1871c3a324385955e01d2e2fb93000a9. Chain 2 (Bitcoin): anchored in block 960503 (2026-08-01T03:41:24Z), 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/GBMJG1902648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbec5aadb37d86c5e9e9a42b83b0815b8dad8cc745bb4ae53948d7c37a4c41290. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/GBMJG1902650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa32dbe7146925bcaf3cfaedabfede07a7235a35f161904d09cbd21bf64a7c8a9. 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/GBMJG2317981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8583ecedfbb849ddf625d315456f3957b5a30b62da35c7422a08f19cffefe7f5. 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/GBMJG2315394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefa8c72287ced814f3d8a9d87288db32251d60b6b6d007c6a8a30890ce5b5d6c. 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/GBMJG2120314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe4802c4bbc92e587562d4ef7298a3ecdab92dabe1e667de4b68cf123f8d7d0f. 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/GBMJG2027286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb85c0185c1c6414c1e736a6f3f197f28487110b69f73861374578f931df902b8. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/GBMJG1921052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f1f77881256746fb9ff218b32cc89c744589c069251241b4d7a8b8c5c3b0373. 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/GBMJG1921053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4fce23282d922047933e99bb2d9f838a109c27d6cfbe2c5dbb71e49a84679d5. 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/GBMJG1921054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9196632eadf50fbb521041edb1222d911e3f5700e1b7e81255fd4153acf92790. 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/GBMJG1921055.