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 0xebf8117a3aa4b34bfce709160619b828498e9a0f803e2a0128ddededa1b9b2f9. 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/841a4dec-b899-4258-b166-88e86265c2da.json and https://artists.proofprofile.net/proofs/artist/841a4dec-b899-4258-b166-88e86265c2da.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 0x2b141e44e0ed1c28f87bf8249f91a9d310670d0b1bf9c52c3370971a3be57b3a. 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/BXB2T2100010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27ede5e18944598781673343cde4dffc58169acd5b813ac1cfcc91f5a04f5810. 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/BR80P1500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5649499dbced1b040f00d50d8e6b96a933f530a6024d017e335eda16e76a86cb. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/BR80P1500002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10c1a26ea80decfd0ced907d2ad8cd8e1bdf97eadde0af7ea0185365457155ef. 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/BR80P1500005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1ac38e332e1da81ffd476248a9e5f58f06fc9c58cb6829cce06dd0778091a96. 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/BR80P1500004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa074f9fd43dbdae02b549d1de2255a40067068228957f45fda7568eea6ee097d. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/BR80P1500006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5471fe39378e70ef41475f2babc2ca759a0f60bb7d67195810a52ddd174fbc66. 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/BR80P1500007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x620a480b44683875cd6ab6efc2ffad35effb21b319f9b14943181015b3af9edf. 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/BR80P1500008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff170fe1f543b955d356ca357bcf51b2aecc1592310a67e7201a921c4b88dea9. 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/BR80P1500003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2f6ad0b1250a97ca0b816970d7d23b7d9ea5bf5ba16b1fb8e872e024ff9ea96. 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/BR80P1500010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9faddbdcba7500846d0387fcfd84bcd705382e8d340262cb698419e88dce0f06. 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/USHM81583442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0ae35a269a19b667bf7e85f54e1b4b14d286533213540b8b17cecbbbd73831c. 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/USHM81583445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb9a7bdc59b32296f69bc0614aef450b620a62a1b57fca31993e15c2b7d67832. 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/BRCZZ1100015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x966d531586b74588eca947975468c593d27c48628cef06dcef7179564802a4de. 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/BRCZZ1100052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03920cd98004f7ca9e4326e4b53a04d9811a55929b44c5f8410a8dc7d8dfc0c4. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/BRCZZ1100054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4b24883be03691bd9270a4e042947744d870b90a8c7669a7940f753ea408a0c. 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/BRCZZ1100057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x657d8e000bd1eb945e2c6e86355a4355ae8e5bd800004f4752158202c70072b6. 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/BR03D2501601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11555e09deb4c1a7f877537f8a39dafc7eb7a338d1f282f5a76f9d2e024ec6d6. 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/BR03D2500636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ff4da3aa20bb984e1c57404ad0ce1ff4ad01602a9ea39864b6300e8238b1df5. 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/BXB2T2300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44470c62bbe61c9c32191263a949a0437c636688f02fd604d99e671e8ddce504. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/BCE3L2200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x974c8c3a78426a128e9032fb31af90bef5545c1140fde9e7d1921632c8323f35. 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/BXB2T2200019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd05156ed33916ef39eee19d4b6006b35cb65bfd10cd4319af795239d7edac76a. 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/BXB2T2200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x797176cc608b9e947bf6fedd649fc2d13e98ca4f3642db35015e746b4edd498a. 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/BXGRV1900019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1af2b3f006a142460a42c4aa9fa30a3c5d2cc19f8c373ad32eb0ef21f935bc11. 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/BXGRV1900020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d77c7f8aced51a55d720b637b1b061478f0fd733aa3d265f957566c33d3f646. 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/BXGRV1900022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7726856b027554e2a2da23893e32b7261e6f1395219391dee6aa4da2619d1d37. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/BXGRV1900018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf992b240fdb8fe6d82deaefd2cfb5559d94be3b871738629e8ad37bf402633dd. 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/BXGRV1900017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b9b575f21057bcd799af075282b7f50d1cfdfa1f08070870fa4a033d0f4d2af. 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/BXGRV1900016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc28783b0efc6cd42115de01570925cdad89b066e646d8dcab5c9d849d878800d. 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/BXGRV1900004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7f67cdbd79d47af9b04cb6094416e120a3ad7b96a84e40c952b8ffba513fa63. 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/BXGRV1900003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1a9bc73adad2252e1002ddf41602f3e267f72124bff6582d0d7defe937cbb8f. 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/BXGRV1800009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2980e6038de0f85166c40f93d384480991014903afbbcd7176f5c805a1448298. 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/BXGRV1800008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62ac99d98c0e5a78b2d59134a343d728a0c35c170dd0f89a2cbb0e5781b8b92f. 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/BRCPU1900004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe52f94f8920b7dabc07b6f82834fe8430b3af9c7e1fcbea3f5fc3eb414290d7c. 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/BRCPU1900009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7998a9c35d89300123204dc7d2bcdb8c1c06bb27d1da8d7de4dbedd966f51e16. 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/BRCPU1900010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5499d47a99f72121e5922629af1a2f78900127ce4a9eae3522191847f0e19926. 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/BRCPU1900011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac8e9cb8d8ddacb59cfc0478cdf104eb6a3b356de40a106b54367e0dc80ec83b. 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/BRCPU1900013.