thumb|Mutations Festival, Brighton 2025 Party Dozen are an Australian noise rock duo from Sydney, formed in the mid-2010s by saxophonist Kirsty Tickle and drummer Jonathan Boulet. The band have rele
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 0xe6d4d6edad8b400da39665f672a9aeeee29daefe5cb76e75d44dee1dfe6a7d9a. 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/76de6aa5-6ee1-4086-9b73-12c3804d1127.json and https://artists.proofprofile.net/proofs/artist/76de6aa5-6ee1-4086-9b73-12c3804d1127.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 0x21f19925a07315c8dd1a1d3db8e1629f67f48822d99a6e39fc573e144d1a9361. 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/FR10S2081126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23fb8d2906b66bd9635e902b566c99249e86fd2eebe596031ca111908362a9ce. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/USSUB2151201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4e382b89724ea73e3599f000f32b749f6ac93fd93d4867c1d611d6b8fe495ef. Chain 2 (Bitcoin): anchored in block 958523 (2026-07-18T08:54:12Z), 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/USY6C2240302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x096657e86de64741a051d59f4e364cd4c58a9757ec1f4b55e5e94794fa23e15c. Chain 2 (Bitcoin): anchored in block 958371 (2026-07-17T05:45:43Z), 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/USY6C2240303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8683702cd382575a1b6711385b7150052cd047fa045afe0a3ab9231a74206666. 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/DGA052082064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4e382b89724ea73e3599f000f32b749f6ac93fd93d4867c1d611d6b8fe495ef. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/USY6C2240302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x096657e86de64741a051d59f4e364cd4c58a9757ec1f4b55e5e94794fa23e15c. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/USY6C2240303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x269f4e734485e84575b3688c480abb31f6addd1e7ea14c5c8ea9c57cf0987191. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/USY6C2240309.
Fruits Of Labour (Harvey Sutherland Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d6c022c28a6b1b89c1614e407f5067aebdc569cd24356fb0a614d25dcbc694a. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/USY6C2240310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13529ee60baa1f29d7ecefcc5d3b8cdd34cdb94650ae27cd105e78d7b5e8df36. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/USY6C2443203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacd97dccc3e64a1b6acdc43ff9d0205ec47027647556c0a41959dfa6000e5f23. 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/USY6C2443204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47c95898f9233fb7d511bfcebb6c78f278be698a6e37701b78cf59653fd6fccc. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/USY6C2443205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70dc21b788bff5236b7ca17d3e8d0fca5d83e17b4fbb1c1e807be8bc69cb485b. 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/USY6C2443207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00e1c9b0a036958ed6a54f2caf3107d9ac311b8d77893a42a7a7089553aee1f1. 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/USY6C2443201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a5ad7eb3188acb180634c2f3285ad3a0265297a8fe8bae6b764881b117e4040. Chain 2 (Bitcoin): anchored in block 958585 (2026-07-18T17:05:16Z), 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/TCAHK2387843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13529ee60baa1f29d7ecefcc5d3b8cdd34cdb94650ae27cd105e78d7b5e8df36. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/USY6C2443203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacd97dccc3e64a1b6acdc43ff9d0205ec47027647556c0a41959dfa6000e5f23. Chain 2 (Bitcoin): anchored in block 956861 (2026-07-06T01:57:57Z), 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/USY6C2443204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47c95898f9233fb7d511bfcebb6c78f278be698a6e37701b78cf59653fd6fccc. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/USY6C2443205.