Bilskirnir (Old Norse "lightning-crack"Orchard (1997:20).) is the hall of the god Thor in Norse mythology. Here he lives with his wife Sif and their children. According to Grímnismál, the hall is the
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 0x7ae3b63f019641f6e9aa36ec630d3278e02438d7fd617bea2ecf3f613d2c9155. Chain 2 (Bitcoin): anchored in block 953780 (2026-06-15T12:02:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d4120e43-454f-429e-89e3-b53301ca70c0.json and https://artists.proofprofile.net/proofs/artist/d4120e43-454f-429e-89e3-b53301ca70c0.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 0xa1d2f288c869f3c75daba614545ce9d6e823c297e613e0e21ccf7c34aa9d86c8. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T16:21:50Z), 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/QZHNB2548691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x252beaa60a7be8422b6d38cdba198017a4b16829829dea9391fc68f90297160e. Chain 2 (Bitcoin): anchored in block 957759 (2026-07-12T21:46:51Z), 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/QZHNB2548692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd3cfa2567c8404f8d0b6ce069a7cc86b253f7f9c766b52189f8289b7d0b59f1. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZHNB2548693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21806c056273be71ed9a9761823dc16eb5248fe98965257047f72270c11d5b1a. 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/QZHNB2548694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32a1bafd2aae4c5b4967ba6e4ce3164d7f423855a6f1de1e4ebc4c93425346cc. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZHNB2548695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9315eb31d8137ea217f4768f7a600a7b5c9047260ac4cbe59ed1d32efd255281. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/QZHNB2548696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x611fb8f670d70b71922e4136b7602b7e5ad24029ea8f8f0270b6d37f8da1e5ca. 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/QZHNB2548698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x438936007e507644928093528211ac5a6495a63bd73bc39c0b9fcd5ef69cbd7f. Chain 2 (Bitcoin): anchored in block 959091 (2026-07-22T05:28:05Z), 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/QZHNB2548699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02259934ea559a170fe83353a60dadab2198863729a545de27e3a079e7b2609d. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZK6Q2546387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeeaf13dc2362dfbd6ccceb862d45ca9cdb1a89663b35b152a06479b6a06674cf. 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/QZHNC2581340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe59e970df79ea2202a45497ca52676f533962588a91896eafa87a268505d21cd. 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/QZHNC2581341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1533f863ad514d78bcf5330e5f9c0915d4bfc906fbce5af2b709a7a77e41c8d6. 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/QZHNC2578408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24e717cbac29dd11623a883cc78c9d409cb51b53289693d5f28be399769b10e5. 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/QZHNC2578409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x504e81599cac5922996a71de594b774f70ba2fec8eafb3e7ffa5167f1403e26d. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-20T22:00:38Z), 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/QZK6Q2591032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67add42a0c714177dce3220081dc20b37faa15e6f014ce476ea75911b5ff13a2. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZK6Q2591033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2ecd77fe3ea74c263a9e55d27eb0a5f7e957677946873f176a5940b668a7361. Chain 2 (Bitcoin): anchored in block 959091 (2026-07-22T05:07:48Z), 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/QZK6Q2591034.