Gitarkameratene (Norwegian: The Guitar Buddies) was a Norwegian folk and comedy music supergroup consisting of Lillebjørn Nilsen, Halvdan Sivertsen, Jan Eggum and Øystein Sunde. Originally formed in 1
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 0xcdbf82da76896bc2bf82f0783b69faa9490fa4cbd5b1b87f5e1b8b0428f94729. 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/39d25dc6-6d0a-479f-a987-c077e57a53a2.json and https://artists.proofprofile.net/proofs/artist/39d25dc6-6d0a-479f-a987-c077e57a53a2.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 0x17987dfd8849197801976da3ac17ac5a06f27175105ffff48cbeb5212ed340f7. 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/NOGTI0309020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ea07f07acd31424fbc4a9aade95553d44b4aa0b01353aec8312a0137adf02c9. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/NOFGG9092010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf2f1a63c836d5af484b57b22f620dda07f29d3450fd5c0a399c265583a48f6b. 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/NOFGG1040250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb75acbf53c9f26bb5a908195013fc44b09dca34551ee47ff17014a3700b309ba. 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/NOFGG1040280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b69cb1522589681645630df68454d408a3e92e466cffbb3c4fc6fd161a72cd2. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/NOFGG5815010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbd32b170a0205918e0baf9ac2a433ca22e49a671c84e6fcd66662afbd2db3e1. 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/NOFGG5815020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21fe2f26134acf5c7180035fade43c32580e433a77056d3dd169605e7f70801b. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/NOFGG5815030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdde6ce4cb2c3d42ac15b9e109bdcfe592788441d2ce446bea827dfe8363130e9. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/NOFGG5815040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f0d04df93a3d6d6cdc9aadd5018a1a3f752125106467f500aad6f15c6823e70. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/NOFGG5815050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb565126238d5828ca21a70a4dfa80dfeeb15e699c6ffbc6443358beae2794b31. 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/NOFGG5815100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca8235ab229c820f713b45a0c12a085def7001ef89c00131f42d09ab4db72165. 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/NOFGG5805040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeef142ada35a6da314c0038b8edc0955dcf1ef83404d5153521d973770d9957d. 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/NOFGG9035011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec1b2dc2c14d255a66f93df58beb9cc0dcae54021b895599badc58a53db25509. 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/NOFGG9035051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d29d99a222e0d38006ec2dec94cff1a8df510fcb7c482234172b41f97e3d4fe. 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/NOFGG9035071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43fcb3905ebb6eaa1b67ce42eea62a514307cc05676174de523e7192fcad8760. 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/NOFGG4052090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7179b124d57d9656334ee0d7ac647d91a5f8ecdfa1d6de4b1c7aaed46112d8b5. 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/NOFGG9143080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17987dfd8849197801976da3ac17ac5a06f27175105ffff48cbeb5212ed340f7. 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/NOGTI0309020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ea07f07acd31424fbc4a9aade95553d44b4aa0b01353aec8312a0137adf02c9. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/NOFGG9092010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34452346d8143649b1086a2b129b3b6e7c75d6f2abf4c5d65945e9b862e704a8. 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/NOFGG9092020.
Kanon! Gitarkameratenes Aller Beste (Live)
Skal Det Være No Mer Før Vi Stenger (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84397769394b727681c853602e2d7e6ad7450e5a9465f78c7935126402fa203c. 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/NOFGG1040200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37c21a22b44a11eedf2f525c25c7d7a4ae857f435d9da761e3fa3968a44da011. 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/NOFGG1040210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5121acbf246f4ba728b314ddff898d0256fd7276f459f588b8cbd22177f8bd5b. 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/NOFGG1040040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf90b37c1ee226d668341f4074e3a34440863027efdeeb0252d3e5835981f011a. 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/NOFGG1040220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf2f1a63c836d5af484b57b22f620dda07f29d3450fd5c0a399c265583a48f6b. 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/NOFGG1040250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb75acbf53c9f26bb5a908195013fc44b09dca34551ee47ff17014a3700b309ba. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/NOFGG1040280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x007eccaf6d03541cbed3698ab05a7c7de97811b778190e1ba2e0e347feef2baa. 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/NOFGG1040110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x203a626d8c7f990c23cac45cf372f3a50d8297d704cd484b7de411a685c149af. 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/NOFGG1040130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a65391031d62357d347de34be8f4c853ebbf29b10e400b6928bcb8cc0ee7b6f. 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/NOFGG1040160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe83c6dc5b5b93ac40df00e63816d8488f6f57047c2e067bd058c063db0aa97b5. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/NOFGG1040350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf2fe6a58a691ce4cf7e21774f447a08a4ce75cfe9d42dd8734ea0502cf8f2f5. 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/NOFGG1040180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x147991907fbf6183577f2a5404cf8d7e8230fe02999753e0e9b64cf960137657. 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/NOFGG5805020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca8235ab229c820f713b45a0c12a085def7001ef89c00131f42d09ab4db72165. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/NOFGG5805040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8b51e277f2d34d6ede1dc6c16db08dd7bf883e2cd1576fbb2b3d27b9044ec05. 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/NOFGG5805050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x714af54b8ad25b8259371cf5329ab6988b3673f1ea0353adf0410c0cf716b91a. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/NOFGG5805070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f6c31f198c4f235b7feae307dacb7eb17f3471c43e3d19bb7521cf65f85cab6. 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/NOFGG5805130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5832125966b3615b5c81d5f9ca36abd6efbadda994345de477f9aad029a9ab49. 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/NOFGG5805150.
Heksedans / Bysommer / Vippetangen Konditori /Levende Lyd
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99588bdc40fa81148aca97966a5056e88e8358aecec3885996c772bce54dc91e. 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/NOFGG5805160.