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 0xcb82c86064e7bfc7984acd031f29d090444e3d61969efd8c69011f15f73ab200. 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/8e6ab52c-558c-4ccf-9b3a-801d5228e53a.json and https://artists.proofprofile.net/proofs/artist/8e6ab52c-558c-4ccf-9b3a-801d5228e53a.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 0x4d03702c3c5d79126b719785beab032cfa9d636e31d8c230e48324c5743ad683. 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/CAO201601088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc890ca754e84fc2af50fd2ab7b2e7a4c928e2604baae3ab77e00d966f3442c15. 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/CAO201601091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea08ffedb5de4c849ff3a716b354449d75aa24596db462345789a52a8e3d460f. 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/CAO201601095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x998b09132f4ef1a63f52c6261ed4cdae47b9f3cf8d8fc499cf6f164bfd471eed. 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/CAO201601096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ee189d9f6451409bc7162406996d69d92c5e1f06992c75165eee1f4fc44091b. 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/CAO201601093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80bfe99fc5138973ca55d455b08ae78e5f4d78745553c92370aabc40cdf08e55. 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/CAO201601089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cfb8f6e588134bb6dac29d3514a87354949b4cade68004c52062c608da9a73e. 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/CAO201601090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7aadab58d4b7d72d98a6951cacabab90296bb9585da12b466a5b0d0200d926fd. 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/CAO201601097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38597d4101f154c1e4af048739908a0abc05704737ffa1e24b1994cd2fa790d6. 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/CAO201601092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0898eb99db89d0296f2a3a544dd67d719db267123257710f47d43601cdc2431b. 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/CAO201601094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19d7578a88b3fdbaa40c7e4fd5eee4c91022ce5724b016e9577bc8e91da92e14. 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/CAO201100897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85d6057a57df23c83c23cde2f4dd1c14628fe7cc06c528fc75ae1873ea0559dd. 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/CAO201100894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2eb344d109e754d78879465336f5d1799244c20707fa2bc21032680adb77a5b. 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/CAO201100895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67c6b3b1e5679544f85e74d01ca9c39d615e2e5a07872f872abb75bc137f0333. 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/CAO201100896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e90ff64c5460ce48ba0057d093fd4559082c03432bc00cd0c0e3c81eed8c012. 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/CAO201100893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdfa75e16472e3d85c5ebf0df90d16db1453f36ac6aa4b645f7a2214c906f85b. 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/CAO201100898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44d3fd1c2a1443e90eb0c611edef254b22f30149712d405d4ee3070ab69c8993. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/CAO201100899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd11d7303cfe33916308decc51cdb3c05335190ecf7162e8a96618f57786a092e. 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/CAO201100900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dd5974ccfc365054ac7b3d242da5931ce68f91aec98368ff748494ee8081adb. 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/CAO201100902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fd4aa443e43e20773e5abeec486f0e5153af18287c735ea619ec453f3286219. 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/CAO201100903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6067474a27250b92dfafd20f4d6f7dc438952612de5fd327f256a5b6968a7d1. 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/CAO201100904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85e1913a1c919912935c3722e8d509e502481a96f54df93b005cc872b938e5a4. 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/CA72N1900001.