ANZ may refer to: Banks ANZ (bank), Australia and New Zealand Banking Group Limited, the fourth-largest bank in Australia ANZ Bank New Zealand, the largest bank in New Zealand ANZ Fiji, one of th
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 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 0x1db8b59000c1317bee14d2f6b761ebddf5e2b5e307729c9543e9f83f8c21a295. 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/0db9b0f0-9384-4367-abfa-389af065f4ac.json and https://artists.proofprofile.net/proofs/artist/0db9b0f0-9384-4367-abfa-389af065f4ac.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 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 0x08329d54fa281a8f2ffbd5bf684054452204d3645ff2ce3a20c187c05f79f555. 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/GBUMC2300009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19030ba98767379a276caaf106d393c7bc7933fee5dd138863ad8a2630d938f9. 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/GBCFB2100559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9576712e96ef3ae741fdde2003606aae9fcd956603d135b11382a679f2dddcf6. 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/GBCFB2100627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2cb4b10ea369cc7ce7150caa3fb3924eacb957f1910c6e7327cc9dff52dac05. Chain 2 (Bitcoin): anchored in block 957067 (2026-07-07T16:54:37Z), 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/GBCFB2100628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86f78e426042b04774985ee096174a7333dce5441501f3b7685dd82ecc72c293. 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/GBCFB2100629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cd6d59cd5dacb627773822b85d0da7f74eaed7a936aa5e0c01063e706412379. 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/GBCFB2100630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a2d96100eccf75100050aef9e47522490cbebf35a69005024c2a4f85193c358. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/GBCFB2100631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2cb4b10ea369cc7ce7150caa3fb3924eacb957f1910c6e7327cc9dff52dac05. 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/GBCFB2100628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9576712e96ef3ae741fdde2003606aae9fcd956603d135b11382a679f2dddcf6. 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/GBCFB2100627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9576712e96ef3ae741fdde2003606aae9fcd956603d135b11382a679f2dddcf6. 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/GBCFB2100627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe721b953c1ea47de8e6020e4cc4147ea00946f773decd190e7f7e102165a1e92. 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/GX2S72100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fb4ffe67c27d2e0637f6962c29f888e9dc019274e3e45217fbf58670c0ea006. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/GX2S72100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x983c1fce1578e3b688eec8c88da653dafd3ca65d07c7e2959cf67275cf44ad52. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/GBEXH2000124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d8dc50e2384f103e953e5b3e476994f679cdb6239f7dd767a8ab68b0d2fe99a. 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/UKU2N2000042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c5986e327481aa146b69d7f2dba4bb96f7860a0f911dacddee34a9737ef0a35. 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/GBUMC2000008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e03534402fbe0b5a62623743e11f9df86a2f0c818eff4dae58bb4fbbbc36f21. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), 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/GBUMC2000009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e65842e01799b403d388ad26d31c3060328f90454df30ef113a224b4fb63218. 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/GBUMC2000010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfda764f19165bc8275bf575f1c252173d6821aa786c1bfb948436b88582eedb9. 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/GB2DZ1900012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5c62d05fe5e8f04d0f8cde5d197736949103c945ef2ca4c554400a391f59ae4. 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/GB2DZ1900013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa84cb79b3760070bceed75fe18b1a670dc793171ec03b0b9e9e301082c1ea007. 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/GB2DZ1900014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb7897f08e71e56c3e6a6b72a780602408455033c2052d027d33d14413c5be21. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/GB2DZ1900015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfda764f19165bc8275bf575f1c252173d6821aa786c1bfb948436b88582eedb9. 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/GB2DZ1900012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x293d2c1b0e5ea34cd35a6029c04053ec20856fcefd247115c9969985b0a16d9a. 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/GBKQU1771114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7337be6b9e3a152999ef6b5d3cce0de8cf402d0013734e4952879befd290d5ea. 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/GBKQU1771115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f1528dbba7a5ebae3d5322ac639938cf914d7e3e28e14b31d530a60cd9f6690. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/GBKQU1771116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc2530ef18cab916876159a92a38eded84ca7cf8bff23f43df8a1fcf897076e5. 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/GBKQU1771117.