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 0x1ad242b1eeb08d5cf4023bf5f08df9cbfc3ae08dd0d4a9c58083eba3f6c1fdd2. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a4a9599e-7617-4a14-9880-f30349591284.json and https://artists.proofprofile.net/proofs/artist/a4a9599e-7617-4a14-9880-f30349591284.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 0x190bc5f940d4cd36886d3e1bcf197dccfea9a429684beed52657870a5ca7a8f3. 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/AUMU09300132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdecbf7796de61013a9274655f6423c4fd127eea1ca9cb7cf8693dc38bcf7384b. 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/AUMU09300133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e9021d11884692914722dd47027934ce786bae7f6a3e533a2a5080992032fcb. 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/AUMU09300135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e6f6d553c7c2da3925ffe2d00cf2b777e98f508b4e4384b9b15b7cefbaac7a2. Chain 2 (Bitcoin): anchored in block 957304 (2026-07-09T12:19:34Z), 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/AUMU09300137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9e9a53b94bd388bbffb23e4388554e9f891bb82e9936c71ef4b811101e82be5. 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/AUMU09300140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4d16d222b2eb01779ae945dcf0b62a0077ddd19fde7f8967c5daaacd96dd04d. 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/AUMU09300141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd119b5b6e61e79b985cd0b6c784755de74017c85e714bfd44dc22682981b88ca. 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/AUMU09300142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b9f0f5c87e9e1c4f2ac18d5b0a1a0d7b8c93fd9bccfc9baa487308066265124. 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/AUMU09300143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf61348a87b9fff188da69d072ffb46b087536321b7c4029fcf9c6dba26b39869. 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/AUMU09300146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x060ff4ac926ab98765f7284b1303558808a1a2fe7e12e64a5470fba7e08f80f3. 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/AUMU09200164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22cd7df35cc726aa50d6f96a33400f29bc3878c6855f0e6326fe9d4dc1226903. 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/AUMU09200165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b9d396ae1837ab38fd8e56a8e7d782237dd865e3391ad7650300fb77f8e0bec. 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/AUMU09200168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe88d5b16843f0a9014e62586f510eb07c7faac59f5bfff4fe951786104a5626a. 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/AUMU09200169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f703f09cc0cc2222faf03de91d234416b10f5719b0ec62e3a5b778cd9ddc0b8. 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/AUMU09200177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0eb0e8ca1c9f8744a7e89c207ac895e0ec70372890aedb69c34a1e1bca4c345. 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/AUWA02200952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41282e5da2b672f7afd9faed14f750d5d474abfd965ba7cb20e7f8a804603847. 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/AUWA02200959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x247ec64840e0eb764663e3a2f08f1e251be31d3a183d8d921b04e3eef71fa0f0. 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/AUWA02200960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1995a3bc7f16a4efc55d4f10410bdd8ecb075e0fcd083633fd839c3b01103fd. 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/AUMU09000041.