Dag Ingebrigtsen (born 12 December 1958) is a Norwegian musician who had his debut in 1977 with the group Subway Suck. Ingebrigtsen was born in Trondheim, Norway. He got his breakthrough in 1980 wit
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 0x57dc8c54bb7bb85484690fdf72ab3e74580fec6e3221aac5dc17083df1379ecb. 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/00c057b4-6ce7-4b22-89c9-2adf2b672272.json and https://artists.proofprofile.net/proofs/artist/00c057b4-6ce7-4b22-89c9-2adf2b672272.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 0x70f6e5d721c25108338bdd4086d2df7bf3238db2e86c17afd1e86d5def018dea. 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/NOFPP9257090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe23b9dc174bb77b886bee9f49f59aafb91a5bd33e1e8b7ed45cc3364de24baa9. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/NOFPP9258100.
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
Alt det der (feat. Lars-Erik Blokkhus & Dag Ingebrigtsen)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa4dccc9f9612760baf4e1b866fced60f784d1f1fa57c4c606daecbc469eca6b. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/NONO22102010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf437031e947492f1061346301aefb598aecbc46298e52d89d2e5559a71b1ebf4. 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/NOJKB2107010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38eaf9ca3f40c362b851e994ae5305d8e35c418852e721d6cf7a3e43b36afd99. 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/QM6N22458073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bcfb830dd99fdeed1e442428b5bd6bcef56eb4d320a93a6aba38b2723092830. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/NOUM71300319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc74b7dd151a51ceaf323045c21936bae1e645af20c341ce53fbdfa012f30705. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/NOUM71300321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdbc48fbe1f9382e323e1c5f19e37d585ef014d8ab99c2e3eeaf5de0b9ac23ab. 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/NOUM71300322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd94a8c8dee45b04b6142adc0b9c7f960e449aecb33002ab30f2f6304e5b49668. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/NOUM71300323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x184936772c78d11a14050cf5635af8a3ccce01df8f7ce86f1aba8474032baf76. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/NOUM71300324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x117010fc5e85d4d6d359d9362dba5862d883f6ed43ab97a5e97c2729742b72a4. 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/NOUM71300325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a507d15710d03abb8e3df5e6c623f2dd52d7633dac27279d73231ffba838586. 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/NOUM71300326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b53f3a9dd63d520a9faa5b34ca37666757a4b30bfd883d521ff67d21719a064. 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/NOUM71300330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74b3a84e1f0fdabde567f22e9bcb739d354ceee7ea6534bf0c00962aed72aae2. 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/NOUM71300328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15ab936aa0fbb2d0763ce6215f7b4ad5f86890c2ff21a7e14ce146ca786c6c15. 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/QZWFG2303874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbaf6eabb81f580db0616a8a27a0f3a013f98e5ff2b9036c94cd4236261e7857. 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/QZWFG2303876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedfca80429f29077ae6f2d85cd67417a3f453ee992975865a2e9c1483e787529. Chain 2 (Bitcoin): anchored in block 960200 (2026-07-30T02:37:10Z), 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/QZWFG2303867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd79df2fad3519a164fba44ff2818e69ef8016bb965d692c4c86d924234ee3cda. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/QZWFG2303868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd76d3686ff1f6aa6053fd7e2a312c786cf60ec223f92c3de806bdeb1cc7b8f40. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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/QZWFG2303869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdea5b751cee53dd362e67c5f216f8fd06a7ac6407837333407974c36d370f1d. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/QZWFG2303871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dbf1fe790f17564c07b187f10be5fd03e077ea800075e4c5ee89aa1036488fb. Chain 2 (Bitcoin): anchored in block 960161 (2026-07-29T22:51:26Z), 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/QZWFG2303873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59b0030d4f4efec416cc7a428f801aa042cb91f3cd2f9c6f33800720a01d169d. 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/QZMEQ2418287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28434cdce9e60ba0255389bacdfdfe64794f1d66745810aeb1ef5ba04029c959. 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/QZTB32383585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58d7dc5cc04c49ab927a28a2e5ce89ece63d81cbe6e131bd6634a94c2dc44bc3. 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/QZRP42292239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86446db668e02461e9e32912c2d8340152c4aa0c92afd9f246a0061eaba95fac. 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/QZK6Q2237235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9cd4cabd571645ac7d6bb900fadd0ecfff58f3df31bb6bfb6f576da2e615650. 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/NOKGS1801020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7854a15900d248396c5fc7bf8e58af0aac02a7c7cbe87578905b6b860254a9ce. 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/NOKGS1603010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c51b896e19fc3dc85adf1160ebb40ce49ea50bee1cc3fc59758498f17db86c9. 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/NOKGS1301030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7500b05d326d53238bfd828faaca1e01a87b939dd184b5d8918e5f7ed3b22eaa. 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/NOAAC1200117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c447d15e94d2a7c4b70a6a3186d1f5802e37c7e117f29672156241938cbde01. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/NOAAC1200152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x416666cc70ce72c319f4919182807eaaddc3b2a082c492af4fc9943fc1da2379. 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/NOAAC1200134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33256a81430702dc8a47ce0cfb790d51f6b5824ac5c007382a067947b1a95471. 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/QMFMF2201079.