Ganggajang, stylised as GANGgajang are an Australian pop rock band which formed in 1984. The four founders are frontman Mark 'Cal' Callaghan (ex-Riptides) on guitar and lead vocals, Chris Bailey on b
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 0xb634a2fb90247a11f866389fabd223585df300f63d21096936da608b5d793cc6. 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/d736e887-698f-4fe8-a5df-c21cf6ad7bb9.json and https://artists.proofprofile.net/proofs/artist/d736e887-698f-4fe8-a5df-c21cf6ad7bb9.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 0x5cbe1fb3759f1d8e782968de31853ac5605d5293390ab3254bf450e7947073a3. 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/AUIS21600009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b369aa680457b0040614078b85eac205ac64750cc30e04f45622d00ced97ef1. 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/AUIS20700001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe00d3e180d887725ac2b10861fa1ca3fe8cb9cafd32c2dc7ccf2a90d99d6364. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/AUIS20700003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78885f7d2472b03331a4aabba71de088aff8b6110ec2453df0ee5acc826bb548. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/AUIS20700004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c1ff35cd0bba209d2b94b4135868ff42983a99b451de728096aeca6f2c3664a. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/AUIS20700005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66ff8b2d57ea5df515eb00906abae07d445fb46ebc49b168191d8d4185777069. 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/AUIS20700006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1afbf4821bcdc7e85a4fb972e4a02880a74f21e228d512336e557fc3abfbbdf. Chain 2 (Bitcoin): anchored in block 958666 (2026-07-19T05:00:30Z), 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/AUIS20700007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d37d1edc7f2e428e4081965433c61dcbeb0e61df85db6dd727c787e30293ade. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/AUIS20700009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c1603859597a0de803da620926928baa6afd7aadbdf8e98cfc143d1b54a7d82. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/AUIS20700011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x214d9eb8043a92eb9075b27c66e9005ae7de5318ee8386aad1bd31ee677ede91. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/AUIS20700017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe260e569e4c38d90b24ee882445818322b9d66c085cd0cf84b94be6629e8f4de. Chain 2 (Bitcoin): anchored in block 958329 (2026-07-16T21:48:38Z), 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/AUBM01900263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b2b96c4d3379d34b2217903ace337dbdf889e4921c534fd07a91d1a2942d37a. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T19:17:28Z), 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/AUIS20700022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x131b9f904a9140b9d36bb3c408a59e395792de193a8cb58b356ead14f9ec25bd. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-21T23:41:40Z), 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/AUIS20700023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x468953e044ff0484ed9dde3c58e9a5ceaae8f9628663525cb16728c46a192dfa. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/AUIS20700025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x432e1c04bf35e9f7e14c1eb9de53b10a6719f1d6c22fa5c27081a49e6d44ab2a. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/AUIS20700030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4376203e48546625daf83599c19c0e2599062f9e53c717a7532b9fe9fbe606db. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/AUIS20700002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4376203e48546625daf83599c19c0e2599062f9e53c717a7532b9fe9fbe606db. 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/AUIS20700002.