1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x0655947d39a75b97314b96801b5773929609878c4a021d1677d7005a9f7835c5. 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/013476a0-528b-4d75-a8ef-4f218fe6ed81.json and https://artists.proofprofile.net/proofs/artist/013476a0-528b-4d75-a8ef-4f218fe6ed81.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 → block OTSBitcoinBlock must exist at that height 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 0x0ccc854b8ca459b500bbadbc5b649d86a0c52fd973a08d1b06eb5b9a52de165f. 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/TR0171501173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba34b5a7ccabf5f774ff9dff6bb9c407b3e69f3da81e2d6b4f47c3f3cdc4681c. 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/TR0171501174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x154b7bb154ff750d4961b84f60ed7e2330bd65a44ab87ea838e09388fc112948. 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/TR0171501175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe318fe6444179fd53966da46cc35a2feb52ff09d88231d9c57025f67d0f0b189. 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/TR0171501176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa13aacced11b270434a0e1696f8a643890cbca323a88490ddcc773566b76ffb. 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/TR0171501177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7037498bc1235113ede26a965a581a0853332b44464f779e0ac8e18ef56c9473. 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/TR0171501178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb168905ed01b28353a41c6cf0ce982c21b823d4d1b9cd272c0a6bdad1435b568. 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/TR0171501179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66bf0f1c2cdc7dc595b500a2dbbc456272e68ea81910c8ef57c689a2071b50a8. 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/TR0171501180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb02978d6ae2360687a30434329baca1e4b8ec8d53bc048a6c74ab94d5bb712c. 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/TR0171501181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9ba46c3bd7d273ded8d440a9b7971d341a003de265d92b89e9a657a78529f9e. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/TR0171501182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46a67953eced2eb11c75a0d14b12e240072bd6dd20480cac31ab09afb9882a27. 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/TR0171501183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e8d5e5eba4af8487488d458072f18a591c157e0288103097a10ef368b08bcda. 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/TR0171501185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dac945e85e64777bfdaaff7ed307076ffe628b6174a32084968ae494638229e. 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/TR0171100462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82b67f0b0476574758fbf18463ed20e8221989ff864a202e25853c92924f815c. 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/TR0171100464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x906ce2649caa0ac8bcb11bc3f3bff7301d618a1c1783fae848cb87f85812a380. 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/TR0171100465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf54c49bff8e067fabf9c64860861a75445167f7f7fa319f85c8bbeb11ccaf118. 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/TR0171100466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03b7f8c4df975ef0ee7666f91d0d2cdfe4317675c54323bdd080247a569e9fb7. 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/TR0171100467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18e0f88a6c7fcda7e7febca075ac259195b32e4c8d4555bd7d6a000a976c1954. 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/TR0171100468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f3d449db1bcbd7b40f0226412b59a8cc723886b6eaa34611a4b8623f5e67ee1. 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/TR0171100469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14645b7181e85f764188cbadf46a52145e0f233e9615bc9ae6bfaf46c4a78b7e. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/TR0171100470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd254078583f33438d7dbe9ecce8302c1472cea1820d942f34ef6bbfda70c4bf4. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/TR0171100472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61bd5dfeac915ff6b53f6132aa21cc6392363973e859f52d1df45c2393a45b98. 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/TR0171100473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8ef62431aadefde24d9a33557e0a785909dfec5540c215eb5b2b09eb5315d45. 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/TR0171100474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce5ab7ee954619de5bb4a21d474d089d74d52962f62ced25ed225e64b849bd24. 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/QZWFJ2423640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dce842f97058dfcc12921978cf8feb768c3b969604029a939c6f348bd5d58a3. 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/QZWFJ2428294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2a2e7c4ae3059fad716e2df3ee9bfd99071a2461971d67a643987e8c5093c44. 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/QZTBD2424278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c301432f84c632092c57c8dfec7315bc5c60cf203cae55170ba8f4437ed9643. 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/TR0172200099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c009d44e2cc73aa23003612b6bd4c4fb559fd7d6cb137ebca854210e1215875. 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/TR0172101921.