In Norse mythology, Naglfar or Naglfari (Old Norse "nail farer") is a boat made entirely from the fingernails and toenails of the dead. During the events of Ragnarök, Naglfar is foretold to sail to Ví
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 0xa9e1ee49f7c5d74c0d802d66d3da850e8e29959b9805a792d3effbf76d92ac75. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1067ff01-63d5-4d48-a846-1720ef6312f9.json and https://artists.proofprofile.net/proofs/artist/1067ff01-63d5-4d48-a846-1720ef6312f9.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 0x0c329ce9c8e834fae46bd800df74f7b89f477ac85e51ec8ba3f0225ef6bb4a77. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/US4E40631403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc657aa8c28e70c3b3e3ddd23fc9a03189297dd5e6c5c98984c4544e5851e071f. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/US4E40631404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88b67bc956230663525fc8ce1449dcf9614d64e908a35ffcdfc1f1b6aed30c70. 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/US4E40631405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a8fc2f3fd96451605cf3b5bca7319cdd1541d7dae45802048c93fda4dffed67. 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/US4E40631407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a326a4399c8e53d271d94d5d2092711a0a99da2c1bde6f02cafda686961ab2d. Chain 2 (Bitcoin): anchored in block 957690 (2026-07-12T10:16:40Z), 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/US4E40727704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x690e4521373d166e1607f59915fb532bc3de4aa0bdd714740bc84bf2966945af. 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/US4E40727706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb772830fd8fe43d581ce7e0e980173d371f75c48d5e77d2ebb57a30692e32ad. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/US4E40727707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x558a2091a3d2f2c5991a11b091dfd038f7796ca831282d99fd7a614137287901. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/US4E40727708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57aa9e6732468fddef43d7685e0d461daaafa3e6e97acb8bfea76760eec0b24e. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/US4E41279602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaab63ac341e59e74ddc403b4b6c37d3af8471ec25c21b1e816869240de147421. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/US4E41279606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c8b3e82c577c28199ee8fdc10c7dd30e6520e012122fdf9a8d62cbf7a625c0c. 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/GBDHC2013901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdae7d01fc94f1bb4ec5f5e992947f858d0138c5215790dd134dfc3837c7adef1. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/GBDHC2013904.
As the Twilight Gave Birth to the Night - Re-issue 2023
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba38bdb87ec0a9c36552e47882a00748de25849b3ad778455772324e9ddfdb82. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T02:54:50Z), 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/GBDHC2340201.
Enslave the Astral Fortress - Re-issue 2023
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4ad9d5a8fba6e38f68be810783406233d06f287202bfccac4c00f152c60db88. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:18:21Z), 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/GBDHC2340202.
Through the Midnight Spheres - Re-issue 2023
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f4d9df92dfba8e956c065c8da0baf2173fd4719635faa1031a2f5254cbf4d99. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T07:36:54Z), 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/GBDHC2340203.
The Eclipse of Infernal Storms - Re-issue 2023
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a288f4df2e08e8d7485c0e2ffbf6b7744fbfe4441fed976cbee8b5f498324d6. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/GBDHC2340204.
Emerging From Her Weepings - Re-issue 2023
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72f18372f20912a466b5696c2a2c3abb22ab845e47f0eef9ac139cf67eac6838. 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/GBDHC2340205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93322fb24e36273b803815b427452dba63affa4fd31c4a5cd634fed89631e476. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/GBDHC2340207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5d1bd2feb0af8245996b9a8a79b6817e800a63092b1d40bb6c6765c6620be8a. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:53:49Z), 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/GBDHC2340101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0e08c6aa5da7a889b9df60864686adcf5de258e8bf96c6c2bc18cad6917ed80. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/GBDHC2340103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47072f59c8523d06cf463dda9d57ad2557cf47af2586ce964e27919a94e68680. 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/GBDHC2340105.