Hail the Villain was a Canadian hard rock band from Oshawa, Ontario, who released one studio album in 2010, before going on indefinite hiatus. The record, titled Population: Declining, was nominated f
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 0xb5dbc628487aaa2d9bd2db6b3ba3cbd4d07cde32e313c83ade44c91506adbfb8. 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/f8da3aad-537a-4032-aabb-b7a75f5c08f5.json and https://artists.proofprofile.net/proofs/artist/f8da3aad-537a-4032-aabb-b7a75f5c08f5.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 0xa245e6d43282e95d81368986f5fcad51b624c55233a7f35ce6f49c4d05ea38c2. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T10:04:40Z), 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/CAW110900030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa245e6d43282e95d81368986f5fcad51b624c55233a7f35ce6f49c4d05ea38c2. 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/CAW110900030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45ca49dac83ae4f975ca8ea6880e59883a91507116138c3d5740ea051a0048a0. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/CAW110900032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd89795053652ddb150916485ea0a21472b69f3a23e8a1ef0e8252f628095db3c. 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/CAW111000058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb913ec1c2509ffbedb8b9dd00f52f7de732f14c4ff73f913162a93b655b4c0a4. Chain 2 (Bitcoin): anchored in block 959069 (2026-07-21T22:32:59Z), 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/CAW110900035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9fd0bfce2a9b88271d901e2f96870757be20f24fdc6322d2545c9e1ad8baf41. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/CAW110900036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea9d24dfdfd0bbd8b93b881c32400d5734879841221c60a22c891d5c93576887. 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/CAW110900037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x048793155bf3a1d3f3d6951ebab50ad1ad7b13fb6352929ca46f156111465f24. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/CAW110900038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x999d3490eec68c60e1049b55a81151192af14fd8614e84e3b643ad0a2b9fb553. 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/CAW110900040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x369fd7e5b2ef777f156e32a48b214b56a6790cb24eb9f0cdcfa0584f99a74553. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T19:26:13Z), 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/CAW110900041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd89795053652ddb150916485ea0a21472b69f3a23e8a1ef0e8252f628095db3c. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/CAW111000058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb913ec1c2509ffbedb8b9dd00f52f7de732f14c4ff73f913162a93b655b4c0a4. Chain 2 (Bitcoin): anchored in block 957697 (2026-07-12T11:22:18Z), 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/CAW110900035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9fd0bfce2a9b88271d901e2f96870757be20f24fdc6322d2545c9e1ad8baf41. Chain 2 (Bitcoin): anchored in block 957699 (2026-07-12T11:51:06Z), 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/CAW110900036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x048793155bf3a1d3f3d6951ebab50ad1ad7b13fb6352929ca46f156111465f24. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/CAW110900038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaee8b7c8ce608f4563c4adcf9e725515f6d34a086f65776098523b5ccbff142. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/CAW110900039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x999d3490eec68c60e1049b55a81151192af14fd8614e84e3b643ad0a2b9fb553. Chain 2 (Bitcoin): anchored in block 958067 (2026-07-14T21:26:15Z), 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/CAW110900040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23bc5030355b4e1bb75350420bf8ef69ab3edde94939a66c1356df3bd18538e5. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/CAW110900042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45ca49dac83ae4f975ca8ea6880e59883a91507116138c3d5740ea051a0048a0. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/CAW110900032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd89795053652ddb150916485ea0a21472b69f3a23e8a1ef0e8252f628095db3c. 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/CAW111000058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb913ec1c2509ffbedb8b9dd00f52f7de732f14c4ff73f913162a93b655b4c0a4. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/CAW110900035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9fd0bfce2a9b88271d901e2f96870757be20f24fdc6322d2545c9e1ad8baf41. 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/CAW110900036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea9d24dfdfd0bbd8b93b881c32400d5734879841221c60a22c891d5c93576887. 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/CAW110900037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x048793155bf3a1d3f3d6951ebab50ad1ad7b13fb6352929ca46f156111465f24. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/CAW110900038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaee8b7c8ce608f4563c4adcf9e725515f6d34a086f65776098523b5ccbff142. 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/CAW110900039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x999d3490eec68c60e1049b55a81151192af14fd8614e84e3b643ad0a2b9fb553. 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/CAW110900040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x369fd7e5b2ef777f156e32a48b214b56a6790cb24eb9f0cdcfa0584f99a74553. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/CAW110900041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23bc5030355b4e1bb75350420bf8ef69ab3edde94939a66c1356df3bd18538e5. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/CAW110900042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaee8b7c8ce608f4563c4adcf9e725515f6d34a086f65776098523b5ccbff142. 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/CAW110900039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x999d3490eec68c60e1049b55a81151192af14fd8614e84e3b643ad0a2b9fb553. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/CAW110900040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1395038fbf77f9fbf1e05fb76e6798e8dc34fd875882b9887359276e70d887d. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/CAW110900033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1395038fbf77f9fbf1e05fb76e6798e8dc34fd875882b9887359276e70d887d. 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/CAW110900033.