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 0xaacfa4f7be06fe6f5a95b2a6891224015b80b20c4e367d42b69da246101aba95. 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/b47cf044-0910-47a1-ab20-1cc037b37412.json and https://artists.proofprofile.net/proofs/artist/b47cf044-0910-47a1-ab20-1cc037b37412.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 0xa0dc4d5a2184fb7edad615d37ba2cdb5ade959db80499dcdb24cf3f29f9f9931. 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/TCJPL2033647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe645ae2bbe152a2c9a4bba1982199b2a49482ca83e373bacc7efb5cf9f693960. 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/TCJPL2033655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3623dcae0e94dbbd959581c2ee768868673002507df7b2029ee8a8f99835efd5. 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/TCJPL2033658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e20d022d47d947e198f9428ebdeb3ce643ae309a5804b36646003558d647282. 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/TCJPL2033661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2950573bbb58f7565ead3aa71497b74dc8f4d35a56b8b34f581e169c65f3a59c. 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/TCJPL2033665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72db05aefca78822444e0881fb58ceb184c43fd07a45f09c3a87c544f5a26b6d. 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/TCJPL2033670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa47fda4030be84ad3233763734b4ff13ed6542c3d1b843d20043291d51c267c6. 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/TCJPL2033674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe041a57c3ba04913e3914458233db70d8e98f038c775e92324874741e1e7d481. 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/TCJPL2033678.
Hijitetsu Berserker-san (Sashi / Grilled / Roast)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc95197c449f4362e228a4888d6f4da5bf91ba29b167d56ea14866e513798c5c5. 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/TCJPL2033685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7987da763309014be1b732242191ad70d5fcfc28e12b9364e4b49b4804027b5. 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/TCJPL2033688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc081652fcd9d49dd170c17f0036d9e165d5ec893eee0f0caae89f3dabd02d83f. 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/TCJPL2033690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbaee1a80c4c360556d032cac23c2455c4728d6c3a97b821f9670fc16e861a49. 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/TCJPB2459102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52f374a7cc8e35bd587d879ef97fcc93855d1b66469c3e534f51a7ff5313cb2b. 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/TCJPB2417343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x487f34c00a2da9bf7aa66e195ee62ff4ad3bbe8c1c710a12b5fdeb16f341c268. 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/TCJPA2493172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe83a0ed82d5fca004bb4a3cad6cfa1bd15418f9b0b63947156eab73a2b1661df. 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/TCJPA2472569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda2af1b713effcea51b29da97c6572c15830e30002fac9a3f2973ef1626f86b1. 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/TCJPZ2416073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xead69cebacf79d68d6a31c33c90ae6dd226ae6498546dbabb20e29b566404c8e. 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/TCJPV2327797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6386d73d36dbcb4e9f677046aaed931e0185bd329eeac16e537097709de86683. 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/TCJPV2327804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c184f804a3e7fec0ee3f6f1eaa19b370bb997be59df4ca5198e77c72aae2739. 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/TCJPQ2171041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2af586514702fb6057c59e4ce702267978f88a045294079a23df0bd7a4ea514c. 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/TCJPQ2171056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x155e339362dfd3410ffbcb8f1a1dff665bcf7a325051e469dc387dc3d780d6d8. 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/TCJPQ2171059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ee0b69384516cd49db1a8bb83faa3874d4e0bfcab63e8b2a7fb80ed3a26345a. 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/TCJPI1969055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x000c4182276012a0b9576fda43434181252927b01310ced421406df87b6c8691. 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/TCJPI1969056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa56275fe64e8239553e735f0aca6ba738f0e4a26858878318a4a40917ccee98b. 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/TCJPI1969057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x689475a80fcfbe6d7c6a35f880aee95c9ea149d0a2bda9fc150e50df209a84e6. 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/TCJPI1969058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef156f13cf70c54abbd4c8cf056584fa04808bce73d10abc71b31b1a2a6d3cbb. 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/TCJPH1853590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf57501075835201faa72b101d2a66478102a9ad59ac75b401cb1955ab44364de. 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/TCJPH1853591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fdf0dd8b85d414ff1fecec55af7b7ae6c98c862c490fe3a55342984ac456636. 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/TCJPH1853592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeff6acccec40e6b1bf479d7d4868acfd165100a15eaa9492f87e41e85b71437c. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/TCJPH1853589.
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 0x0c2473bddd90adf7ab616d0ddf5a7eff532f18c270fb7656f8159dc4bb484cd5. 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/TCJPG1860727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ea745ea3ffd3731477b71738edc96c079aa9bbd6b6f260692d742220f373f50. 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/TCJPG1860728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe77c1ffe96a74324f3a8f07a1b673efba48ede1469cde1e1e6830e497229c11f. 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/TCJPG1860729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd253f74fe81addcc4594154f6ce9574f39f917b91a24132eb7f3c703be85f1e7. 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/TCJPG1860731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a0c725162b598f461c0531e6a3a09b0130784ddc91a1ae5a140d0574953c969. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/TCJPG1860730.