Gatecreeper is an American death metal band from Phoenix, Arizona. History Gatecreeper released a self-titled four-song EP in 2014. In 2015, they released a split with the band Take Over and Destroy.
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 0xd26a7d4f70c0d3586f3e9e8752d204e3579207c5e779acbb7c6feb26e49ada21. 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/69d72c6c-d167-4283-89a7-eece4078f590.json and https://artists.proofprofile.net/proofs/artist/69d72c6c-d167-4283-89a7-eece4078f590.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 0xf1b287a6f19396d4cc7929a34feda1524abf92518a24e2d322151baeecb77caf. Chain 2 (Bitcoin): anchored in block 958496 (2026-07-18T04:43:53Z), 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/USV291437654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc00d95016bdf1cabf7db1bda1e4f0ebfc88841df2a9307dcb965613901194b3. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/USV291437655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12165c1da428277d6c7280df9c9ed24142666530aeb82f38e2d89609cba39b5c. 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/USV291437656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5e52c5c4f534b5db6e537a033666b7f052deb1f2bc91d8b437018f9f06fb010. 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/USV291437657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e8a04b9cdbf53d53f575e04cc05b0cf48bcb8a0058b7b068ce72cf11669177e. 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/USA2P1637190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5be22d046f2eddfbb5ed549d657cbe8d8ab7b9733ddf7fc998727d7b6af22256. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/US2641636205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1ec9b715ac75332aac6abab07d5ede10fcf0843ddc33ee94b683e7b21488450. 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/US2641636207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90f140b2251e032446cca4351894b91f213577af66d5cbab5c3486b1611f1735. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), 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/US2641636209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb361f3436531a528450627f7e0c98f5b4ab4dba04aa449985acc49cd6facc881. Chain 2 (Bitcoin): anchored in block 958465 (2026-07-18T00:04:42Z), 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/USNDF1702601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x313e9b139ec33f09f869f301c02446e0cf6cdf34cd044d1f2fc568ac7050ab00. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/QM7281748193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf906ada45c817bedf732fc4567bd515389ecdd2f78d627b5bfc7cdb484b04108. 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/QM7281748194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e77b3a1d508bbcb8c4502cc717f8a10bbef741fb24356e3ac943dfcefe1b36f. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T08:56:51Z), 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/US2642032901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68d944b02b6d44181ddbac3c7a4ebff9cce92813a320032c979a697bd1bb9198. Chain 2 (Bitcoin): anchored in block 958083 (2026-07-15T01:50:31Z), 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/US2641943509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x160af8690c067b96fc476476972d61ee50a0ff067abf04e3eac8fcb11fbceca1. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/US2641943510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37f518b6e82736d8af478e20a1fa618bd2d67084565ee6ead7d41149cdb50c55. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/US2641943511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79b268160671cf272eb1600a15941549bbc22dea21992b8dd6346a5ef15bae16. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/QMFME2097852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x583cafe1883750eb9facd4a6647d18bd7cf8193afd93219512ad74f2232053ec. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QMFME2097853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaeeba5f3a8bd0d75af3866ea416a103ba2d92026516d3d6b956d6851ebd4569f. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/DED832300781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8313f6921e5828027419956bf035cc23f7b18d26282f15cc29655f6fa6d0f00. Chain 2 (Bitcoin): anchored in block 958596 (2026-07-18T18:42:38Z), 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/DED832300782.