A Hill To Die Upon is an American blackened death metal band from the Monmouth-Galesburg area of Illinois, formed in 2004 by the brothers Adam and R. Michael Cook. The brothers initially founded the b
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04b4bf05f65191a0dbe9a3f53b4c7b40d310ee2cf79823264b273b84ab8e8166. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/76372473-26bc-4009-a478-9fb169d3a750.json and https://artists.proofprofile.net/proofs/artist/76372473-26bc-4009-a478-9fb169d3a750.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 → block OTSBitcoinBlock must exist at that height 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b8eb10ebc02b7c8013d74537abe7ba9a4454d5239bd90dd536a0082152b686d. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USQJB1700015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2020cc949a8b82654ae77330db16b9a8bcf46621bb2df85605a5cdd4eb5bcdc3. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USQJB1700017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee2fb7d99ffde4982e2928b3bcdbb198df71802e2a0aecb607c87db2b933c566. 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/USQJB1700018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc82ac553a1072be6caede343acb3f46ec700e9dcbc058a8e7cf597d319809973. 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/USCGJ1487994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5180d84bf3b3bf8441591ecb8299a0242e80e2854fac117366ab87a25971c42. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USCGJ1487995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x555dc58c75e66cf7af5919490b3b40c572adab73f59ad518ac06de09b09b3988. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USCGJ1488001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24b9e5277403df3faa645ac96c4e482d9e5bdc4351cd9db9e03cfa1e7be2076f. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USHM21133253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x299fe80278295269e461b9b1057e405da89556861e66e5d25b2452cafa43cdcc. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USHM21133256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6df5969a170aaa0d9115d83cd2a819c0e3fe726fa15f2ba2bc7f90e120478ca9. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USHM21133260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab40a20220d1a7e95dd6cad5db500260e3ab23de4348e4220979a826593a6c0d. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USHM21133261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x139de85c3c31edf92fdfec048b3193be6303dda6411ecad1e6b3be4018c71278. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USHM21133262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70d969c685ba52ca38d5bf8ccec9d9e71bf535c1499323c90c8e571a0fcf0fa9. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USHM20952610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb8f3411914d5d01b3134a5cf0f730b9bf21622e0000f700f1d5ab860b0f9fdf. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USHM20952614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7baec28155ed512bf731d207e356e4398f920e85f6186661400322b42b429cf. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USHM20952616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbf223c37b7db4ef8eeb18f73593af1cb3fe06659e021dc079d436f787dfa546. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/USCGH1365635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53b00ca5ca2c8a85fe9fd004213af01456c4d8cc68ba78cd3be018c8082f6762. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USA370562111.