Steriogram were a New Zealand punk rock band that formed in Auckland in 1999. The band consisted of frontman Tyson Kennedy (lead vocals and drums), Brad Carter (vocals, lead guitar and lead vocals), T
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 0xa12fc3193302da7361554d2c43ac1f27de8d4ce1a4feb8a1f5d45d8932a40b0d. 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/d9aff6f8-fb02-41c8-a65f-2e99f59e3940.json and https://artists.proofprofile.net/proofs/artist/d9aff6f8-fb02-41c8-a65f-2e99f59e3940.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 0x1070598228548dba0e4b3950f8a88b8c6f2f9d162c2e0837c1c1011ff1fcea5d. 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/USCA20300625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb0c8f23a9a10f78f576d9b991add8bd59d70528083206f9da1fa84a429b2fdf. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T21:08:39Z), 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/USCA20300627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1eb8013439360c0877077199cdaa55e3826831bea0b99e67f52a7996e4a0639b. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/USCA20300471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c42050573bc0d3b06fe9e6450f95ab7e195f7e6d72e8adca4ebf39bb5e79c0b. 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/USCA20300629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9272aabdd1cd60596a874d4cd4806eba1d9536e541003352a8fcbd82b03d691f. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/USCA20300630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88b4fec3747cbd3c739d698749705d5a6e3f5ac0b765ff6dc06e7fa2b20ede61. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/USCA20300631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04a1b3cc38a471273c4395dcdf5015547f1d6ed097f0efd0b08c9daedce520e2. 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/TCAAR1061286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc04010c4bdbdbe6c3609a74ca2aa60b4815c1819ec6aa4407c3d24cd8c5a52e3. 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/NZSS01000004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7025407e9c49a9498964f7de4282eca46b28d85d72572e22bc873ea120ebfcc0. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T15:07:00Z), 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/NZSS01000005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29714c5b53d84e90e5215a50ed4de5dfd605f31653bfed37169d5bc2ad281743. 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/NZSS01000006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a26bd124e9866133868d9f0f594d1677cd050d4f6990a89a5e7944cfbe4ab3a. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/NZSS01000007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5df55641ff31f96b3407268d3ba8fa49c18316f86f2ddef617934422fec0026f. Chain 2 (Bitcoin): anchored in block 958911 (2026-07-20T16:46:31Z), 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/NZSS01000008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4eb0eb89b3b5e94ba2570f6c1d6744cbe87d15dd4b7ba20d6e83f651d37d369f. 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/NZSS01000010.