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 → 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
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 → 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
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 0x04b9e50fc95eaee094f72bb28179176bd697fa8b92351c8b71c53ec2cde8b0b2. Chain 2 (Bitcoin): anchored in block 960487 (2026-08-01T00:15:43Z), 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/USQJB1700012.
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 0xb19b1ac5026ee2c90380d15fdd353ba89a7fe2b4156e650136c26c73200b99de. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/USQJB1700013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29198f36415ad310fd78c8f1b9485eacc2665538705b41fb5ff4ae30e47fa01d. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/USQJB1700014.
“I Was There When You Went Under The Water”
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd323131140e0c900438d82c84dcccb989cccb0f8881a7ce5f7157a4a6d6619e5. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/USQJB1700016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24ad05b98ea12337c4ff7f11e3ee296cee48547083ef180d05ace7252400d1c2. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), 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/USQJB1700019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb7dc63ad2847042ae4456ef07b764f5e794c8dce81250ed348ab4b6f040457e. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/USQJB1700020.
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 0x4b4270ff4746400629ca0505c0009389701dec258a346c0ebeb5c99699c3250a. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:05:58Z), 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/USCGJ1488002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x844ba1fb3d3aab74625b46e88a5bcf9c34a61fbaf24c085cf376e82967f36e1e. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T20:49:46Z), 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/USCGJ1488003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3ec214720b2ed7701fcfbc461bc95f7cb7a80b7a49ce82c0229818910e7c5a8. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/USCGJ1487996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9974bb0371fe879bddb62f3126c4fd73232dfc5de63c80dd9758fbea8fa1396a. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/USCGJ1487997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38278bcb6f2e6c7be2166106b5c617528a7edb74b0f3881098206bd46b073c5c. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/USCGJ1487998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0db26d3596308c34c8e7529c8275638c6b15c6e5093abd91809e28b4cf976866. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/USCGJ1487999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cb0fcd3e1cc68b369b4c7bdf58719399ba8901fff6316820dc50648f2be3a88. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/USCGJ1488000.
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 0x95d4902cb6acca46d0b422b6889c3767d4a4383fa8b44f13aca17884957ea9be. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/USHM21133254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ebd26208a96c9e8a7d559618a569a9a4b76d3e3b4d7cf20828fc3ceafbfb352. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/USHM21133255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2886a33ccbbd8e5446940d1fc0471fb72d750b6ddd5bd167f01318d19bb89c5a. Chain 2 (Bitcoin): anchored in block 960503 (2026-08-01T03:41:24Z), 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/USHM21133257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7135bcd528b7e0ed3a2b95ae04546fc35d01c0f5fe1f4d56918de5232736ed9. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/USHM21133258.
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 0xae239151b308dc2a3930e8990590653f5fb5dc18f06e172e227d594f7af8c590. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/USCGJ0936083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82dd0c30907394d80df3ad6230b47f98b750177d51dad8a525301247d487b43d. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/USHM20952611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdbde17346396dac5c7ae03be4eeae6b9b91613d51467c9cb60d1d82c65c0d40. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/USHM20952612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x349d5468c4a04fc46a99ce06448b8ef5a0516e25abf771a9b714fa97550ce583. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/USHM20952613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4f295673beb66b8751622c13b166942da5242df6de811901d885ed478bad659. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/USHM20952617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x855e40c1d382d3616d1e2d67c20dc84aabfa5a50f2b880d4f2f92e98b8971463. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/USHM20952618.
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.