American Steel is an American punk rock band formed in 1995 in Oakland, California. When offered their first show, the group took their name from the block-long sign on the warehouse across the street
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 0x77804e022004051c288289465edfb04596c8848f3ba7593bf7636acc17e36071. 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/ab0fac6b-d70a-48dd-b5d3-d6356fb1a222.json and https://artists.proofprofile.net/proofs/artist/ab0fac6b-d70a-48dd-b5d3-d6356fb1a222.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 0x913f0e5e3d5f7b8e3f345c1b6acd575d129d535009c45ad64c750806c7195c06. 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/USA560438297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2869cbbbf1fc73a586ffafa5752f12eb30677b20e173fead0ab1c8bbf321f83c. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/USA560438298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b7d49e925f29a655450cd4c65d9579db06c1fdf11bfad5c9216278d48dcffd1. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/USA560438300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x247b65bea6118965460cbd4e00c91eb9fb46e489801e307a75b0e0927d148176. 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/USA560438301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05f70003595801a2a24d66c34d0595956fa161cd89f581306246c7d16e8c5ba8. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/USA560436436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2a4a4025437d6969dffb56bedfab1230bc8366820501f7fbbe2215418bba997. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/USA560436438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e206e745fad2ff2c164a7b75252b66329558bc104e5a1b72c47b2baf3719274. 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/USA560436441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fd6f2596d5739a4f838a7db615bd7e10f8c0aa6a06c0bdcb79ca28cc903304d. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/USFW40772401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ce16b9cfc039c3008e75f1767ab5928a9fdeb4b7e00183308e0d1468f4ed644. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/USFW40772402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x327b1cd642d9fc3876e639523fb3521b2c430be18e23340f00f64f8bb56b776b. 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/USFW40772403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x550c7ac1d32aae5265e5adcc04552fb8d3897f3c9333836d43345b4a9e334d32. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/USFW40772404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae387238c18fd758cce5a3769d263dc772ddb03502896c9a74ed6530e99dd9e3. 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/USFW40772405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe25cf70f42596dfc28e63f425ddb3e12ed9164faf01a0c3f0116b9605149be5f. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/USFW40772406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9950cf03e4ab132905f8320914228c8ea6f9be34c0a29ddebebbe353065878d. 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/USFW40772407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe17f34369b20bf697dbc0960e075cbc392476c05f85171dbee421730a9553e1b. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/USFW40772408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb8d063e32483e84dd5144b9b4fcba010572dea408bb1c4e7fafce9d7ce82688. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/USFW40772411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4260916a50f9c16d3c96d20919ff246ade56ca99ac03b624a981a52510f7207f. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/USFW40974103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50272a84fa4520bdc2a237ce96a2411d60d63e8ddc868be31c7f708859d834ae. 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/USFW40974104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbac3d52b8623ca04d9b94087c8930ac238516f3f5d08aacdef72511126f36192. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/USFW40974107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3831d8b4841e1f8cab42e544d5ee8e03b57afcbe73f3961b1051ca07d26ea2e4. 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/USFW41833501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68fa2b994261ec10a923aba31063bb3f6d9df715bb83b3da5492a9f511d26cdc. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USFW41391523.
Mild in the Streets: Fat Music Unplugged
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21ca38874f2f7ea2fb4103d9547577b05eebd58d636f491b948adf4c44eaef35. 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/USFW41695613.
Let Them Know: The Story of Youth Brigade and Byo Records
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8534499d8dc463768373b80e0ceeebfe8091a8f97d273d4edcb0dcc72578d97c. Chain 2 (Bitcoin): anchored in block 960198 (2026-07-30T02:21:55Z), 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/US3X59312512.