The Blackwater Fever are an Australian blues guitar-drums band, formed in Brisbane, Queensland in 2005. They were awarded Best Blues & Roots Act at the 2006 Sunshine Coast Music Festival. They issued
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15fc05aac2520d906b4d69feb7b3f9a8079da0b0b8f983d620ae6b9522c77056. 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/5a8f556f-b8ec-4928-9790-8451d30d2348.json and https://artists.proofprofile.net/proofs/artist/5a8f556f-b8ec-4928-9790-8451d30d2348.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a220ca053eb377c630b0cbcb07bb5e2b5e8a05f08c6b19f250915f44404ae02. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/UST8K1618018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x651590a8809acabfb29b0b8036820f3903f6923e7823253f9bc73fcf70fcf1fa. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/UST8K1618019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbf7f5d60533bc679b7093180e78b46f433e58c4eb05587a549392f916df14de. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/AUBW31200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06525c8fb8969525ea04318ccc6037a5ce02393ef03e20f698c2dcd3f5d97aaa. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T17:46:59Z), 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/AUBW31200007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b4dee0fce696e0e368c517432b2019cddcee1e05bd0a5429ab19622ae2a4559. Chain 2 (Bitcoin): anchored in block 958069 (2026-07-14T21:37:55Z), 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/AUBW31200008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c44542aa6f4f440cc5e901c0e859f4a820ab9f6f0ec2932a2dc620c48bda8b9. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/AUBW31200010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e069c5d71bc17868cf200c20f6e2e45fc89f66a6115f96899f7ac833d374758. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/AUBW31200011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf47c99aa45020a5558cfc8c8616d92ab2e370a0d53473f9c83749025e0dc1ab0. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T06:31:38Z), 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/AUBW31200012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3a7a6aedc163fe4c2b0c2aa2bd6ac25b91cf8cb40d631f65e0572fefea5cc84. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/AUBW31200013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x902c4157b770a3bee783d741548bb15b99a08c7b555e9c4acb2413d77391377c. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/AUBW31200014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bfde967236982f92684456b1cca0e1cba9616ddfcc2da3ccfc38dabfa6391ee. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/QM2PV1777458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fda853047d65fa4b626077d283d2ce3daef48b67fa7c5fd9723df93372f5cbf. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QM2PV1777460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb05dc6a37744b1731cb1b1736c12a65ead5cebed1485aa5438686ca6775fa080. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QM2PV1777466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf8c308c6f760386fd66367e1ab10ee6bc127b6ef8d755f4df2a33beaa873b5f. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/QM2PV1777468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48ef102a7af6ca15359428b39a2e77061c05050c8e2d46d94e6dc9cfe947d3c4. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/UST8K1736428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9ab68ead31704ea9de04c12751015b85fd17b3daf8bf69f86233228c1112084. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/UST8K1736430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4200cd5bfc337a34a10228a4ef83c1092332229bd451d31107db1636864c6f17. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/UST8K1736434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76ff46bf940a75a50773d9c05c02a06ae01d02bd5387da5e4b80914b7e32fb56. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZARB1870500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37c65e1fd35404c021eba29e4bd1d247a6ef3750e59a9393f1e3670b3d30e7bc. Chain 2 (Bitcoin): anchored in block 958668 (2026-07-19T05:16:11Z), 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/QZARB1870504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc65b38f5bf35a3bd8cd5204c254d05d204cf82a8c569eaff16a6254219773e46. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T02:30:29Z), 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/QZDA81982437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa15e0677ed613418dfad0c3523f2d1251471ca19a2bbf46e1f70031af85060de. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T04:57:48Z), 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/QZNWS2070896.