Alkaline Trio is an American punk rock band formed in Chicago, in 1996. The band consists of Matt Skiba (vocals, guitar), Dan Andriano (vocals, bass) and Tosh Peterson (drums). Founded in late 1996 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 0x92f1277bf5396f647ca6cc427042788f30937d5b27e17d1ea9063cf01088afd4. 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/a6f0c5c3-8945-48a8-8301-af5c8a84d12e.json and https://artists.proofprofile.net/proofs/artist/a6f0c5c3-8945-48a8-8301-af5c8a84d12e.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 0x06c86a852f28c8bafe012ee1f37a6bc1e5ed60c32178df80ad7bb3a80cbff508. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USVR90540904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd51da945d44ffa12fbfa797ea3fd92ea5b60507a58725937e12312626da7573. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QMRSZ2302161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb32de82fa3d95d20233b6ae68da63fd6113bb6bc8d78dbf34607b718faf3a415. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QMRSZ2302162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23bcf145e946a44edcc78b80e10253f5c1a52934cd513fac9b5df805d5e2c980. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QMRSZ2302163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9eceddb0bc5b6fa9c2143680489525d00296ed313682738ff38c10c6d019be8. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QMRSZ2302164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28f261c71692099ecae6bfdea9e436f940d7f97135147ae7940d1664c289d3c0. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QMRSZ2302165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4f294e0372fe95f9207c534f20738e9f88d0fdb452b6d19fa90443676d601c2. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QMRSZ2302166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x584f45c0a3239e78736785b5ec9fe68a5351219e1161237c9a746879f9e7438a. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QMRSZ2302167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc98fe084af1cd67d7fe1d401ce0eaeea40bb282b24fad13be3f95d8061cf782. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QMRSZ2302168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c3793da4a2b047fcef53243f4fbdb3b25bb9d2b79247b8a81d5185f767c8290. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QMRSZ2302169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a8b9c71c1ff40826e3ad68497ac4fef727456d3e5c2ae12e11538ad20b7f376. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QMRSZ2302170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6034344a458ef9bbe7ea1a6a467efbef3f7c2f175a6df82b397f57e1f4ca1148. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QMRSZ2302171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x753ce0d4f4e0d2afe196195ae4565f775dcac51e52304dcf3035308d2b1543ca. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USVR90338104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15f662f5bcb212cf1a2f515333821172f9c59580c64d8900cfe3b496d592820f. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USFW41391515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72819e31d4400718de3981611ba906bbd9e9a5203830cc362ff6a0023c466711. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USVR90235301.