HAWK (formerly This or The Apocalypse) is an American metalcore band from Lancaster, Pennsylvania that formed in 2005. History Monuments (2005–2009) In 2008 the band signed to European metal labe
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 0x608ea9eeafa3c60602a7d18fc60823c95c2747c8bbf1197f56c8aa59487ae39b. 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/abe8ce5e-ce4e-4a67-83ff-2c34e60e0673.json and https://artists.proofprofile.net/proofs/artist/abe8ce5e-ce4e-4a67-83ff-2c34e60e0673.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 0xdc4f2c9fb42467c1844cbb534752051e546f1fb920849f769008dd953a65571c. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/USA2U1000036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7ccc66cbeaf86594e79800f513f8c0b14a14fe03f0eff7fd9089f647bf9b6e3. 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/USA2U1000039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b3b942bf41962177d4ab68a4e4b2f91941b63a6820237335c0279dedb653a50. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/US94P1010603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf49c39b99470c0a716ed1025aeb56a7acfb6355a05f9774ad6e78dd8fd5fe359. Chain 2 (Bitcoin): anchored in block 957747 (2026-07-12T19:35:06Z), 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/US94P1010604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x423eedb73cf991bd10a53809fb8b105d2c47d888170642aeeaf982556e79723a. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T01:47:42Z), 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/US94P1010605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e25ffa878dd8cebd0e672b589533771e487596c08545fade6c214009980dd58. 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/US94P1010606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefdff462cb89d1af00c14b1ee1c53f3a6372815a4f312e695342ea296eb12c42. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), 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/US94P1010607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x678a77f619f37aa6952e1d9837afe653eafe3bc4cc14307c265dd2401a9182a5. 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/US94P1010608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38acc8f9d0d7364c0de25e6932fb487198f0aad5532a30d66ebeb7dfeab57429. Chain 2 (Bitcoin): anchored in block 958708 (2026-07-19T09:08:25Z), 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/US94P1010609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36599a5ee64d7afabf05b6415b000ae973c73f2a5ed33554586837e94155e032. Chain 2 (Bitcoin): anchored in block 958738 (2026-07-19T13:10:36Z), 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/US94P1010610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbc31d96b22839a1fa566076ed1a00cf91efa8cb530c3d52ed28dd5633b68cf8. 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/US94P1212401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd96b5cf721e16d82e50f035f5052c8f261fee6c0d33fbc2fce916694a64de53. 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/US94P1212403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6aec939b03bb99e3d309e5ba3b43015edc9329e9f4f8041f73b1b8e4ca5d5001. 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/US94P1212405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dd96f099632238307b578836672d90e4bcfd8c462b8206ed3e240774adf80a3. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/US94P1212406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc745bd3827e25e49fba025fe6c2a0731d3350ceec7ad4aede912abe64760d13. 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/US94P1212407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc33a80c60e8b81a92631a4c9cd82ff12d27844b8f22ac0c6dc91717957974608. 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/US94P1212408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe99802f7bc0fb59f83a1875791027e81686071af7cb5470b6c7f63d73da1f13. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/US94P1212409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e352aa60b22d715ea9395da513f8d5b958cab3990180a56885bfd69af596b9a. 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/US94P1212410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf493b04aa53c4b4b6b67533f71ce52c0e37da97f677ec623c9d2efc38de84b6e. 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/USKO11201366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2512cb3dde250a3e1d63f680e326f7338cf247274f97eded5c556c4898efed14. 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/USKO11201369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe683655a78372627ddd86a4c68c8444258898e6d60cbe92dcb74c58386661076. 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/USKO11201372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x426405b3891dc90fde75a45fd9d9d28b0d362a74f96eb635542081548d84fef3. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/USKO11201373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5c50e2f9aea0b352a86d55a785c513e025721af19cbe165b5af30556817a1eb. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/USKO11201374.