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 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 0x0be1be179ac5c6b9e9721f3be0156ba4803c201ae2e1ce78ebf0fa31a2b412cc. 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/f88581a3-7935-4d34-9bf5-5ba0fc29d6d9.json and https://artists.proofprofile.net/proofs/artist/f88581a3-7935-4d34-9bf5-5ba0fc29d6d9.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 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 0x7146d1efd5757fc830e1f1f0aa45c6c2d283020be8b4393e49fbe54de327f883. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/NO28R2301301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb9dcf81f28cca14ac6aa4e7b02273d22068884260d6f5e18a37579bbbc4a547. Chain 2 (Bitcoin): anchored in block 960513 (2026-08-01T04:52:22Z), 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/NO28R2301302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67db6a82a31c55f705bf525aca4626591dc71d4b6e02f2369cb3c3bdc816b290. 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/NO28R2301303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44650d01cb8d1852058060175e098efac96f50f8b3970f93ebe92cbff43fa397. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/NO28R2301304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43de09553b615d458f6bba3b1ba1f27c6e2c859a353abdc7430794d968b429f9. 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/NO28R2301305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55d5abfdfdc5b63824321cc1527330bd2a141599a8ade40dfb987e9a3379f9b6. 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/NO28R2301306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14c10a808b3abe91f1ef927bec1d751e6af0997f3eb5c06efee4c7101680a1f7. Chain 2 (Bitcoin): anchored in block 957039 (2026-07-07T12:58:18Z), 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/NO28R2301310.
I Just Want Your Body (I Don't Need Your Soul)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecdec09ad785998b6ec439588381834dd6ccd98cd548898227b01ee4e1dcd844. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/NO28R2301311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65b62841127cd52e087999ad909f84dcaecb682a36c33d119efd44f98c09894f. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/NO28R2000401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26e0aab7f0a446ca22200d2b034a05c984b05b04d356a358fcb0197ea947d706. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/NO28R2000402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde9c24ccc9915e6ac3bae959347208b9ed7b49caf3c16d577c4371bc28f34079. 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/NO28R2000403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ae49729c1712949f476a629e6bce445989c4fdebe1025c280c888e27b8dcd5a. 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/NO28R2000404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda7e9bade643292f5ed9c7047c98ba3670e205898aef775beb74018ee2edae70. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/NO28R2000405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeda72e5ee24baca016f3467e35e1077a76893baceaeb2221a324eb979e10cf10. 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/NO28R2000406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2ac9ae894ea4a0a7932756dc6e61dd4796413a6ae8ad4c77dbd6339097425b0. 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/NO28R2000408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69e980caa56437e10510cda7a7a942d65d048994e84e6a9764dfb4f5dd6b21de. 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/NO28R2000409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a2e54e0051ab8867290120ab7693b64e363264b468fe8e91b9b8a4688ab0d86. 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/NO28R2000410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf32c9447ada7e1a08e3d7923df9023829984bd350dae8fb28abf97b85be81c42. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/NO28R2000411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x100265577bce6f15c3214e3411526e5ee2118a46a5a71275dc25429fd808b5cb. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/NO2UI1805101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe103769b85b28dc31d80edc556c15c6b4445d89fd543f5f780ebe90c1854d91a. 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/NO2UI1805103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x259da2331c4562defa2a3e2e22b3257acb2d8c6b7cdd95f172d915e619e6db46. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/NO2UI1805105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x369386e15755b72d07ddb6715216e7c2286edf946bf3a123f553fe2395d03a34. 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/NO28R2401602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae81a5859efb8535e9f14f279173173d3e38301c9f5cf0d7f971b804098b9574. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/NO28R2401606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ffbca7c9046160dcbafbab88f2e52ef80bb1d3bb8740000c24e5631ce1d2c92. 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/NO28R2401601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77693c2b4916dd7b9e41451a5ba04310d315af01ed279b8570dfe012fb729c5c. 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/NO28R2301314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe464e28fd26a62f69d4de4874a345e492b2209ecf1481ec7b6b0f7e725912a52. 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/NO28R2301313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x247d196ff1deb1e6fd2a1f0c845271ec13ea0f73536ba70b2de2d84955ab9f34. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/NO28R2301307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55d5abfdfdc5b63824321cc1527330bd2a141599a8ade40dfb987e9a3379f9b6. 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/NO28R2301306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14c10a808b3abe91f1ef927bec1d751e6af0997f3eb5c06efee4c7101680a1f7. 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/NO28R2301310.
Human (feat. Jonas Alaska & Malin Pettersen)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a2fb3e30cf8905ecccb7dfdf7c0402a08a4308a4a1e4bf375d933d9b395bf41. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/NOHLX2230010.
POST MORTEM: Ingen dør på Skarnes - Title song (Død, hvor er din brodd)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd81da66b5b652485b2a6cf9588e3828d7820805ac9d990871e3be637a7a174ee. 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/NO2PX2102010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26e0aab7f0a446ca22200d2b034a05c984b05b04d356a358fcb0197ea947d706. Chain 2 (Bitcoin): anchored in block 960513 (2026-08-01T04:52:22Z), 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/NO28R2000402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c557c3365e246707a6bdbb909a8f350a8a1c1721c9757351825e896841ee459. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/NO28R1900202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd756f7738288574d172a91affe6b44e96b33ef3519da624f3e3a5dcf0ca83845. 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/NO28R1900204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23697b1358527505749dc8ad308fbf9a2d0313fad5f761f4eec3263a60618afd. 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/NO28R1900205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x254b062ed01648f925292f9f91558a03faaa1c4e964615fd4e92b0aab57f75d7. 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/NO28R1900206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bf2b02e8c73f7aeb00a07baf9ace61520858df6ad959189b2933412959f40b3. 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/NO28R1900203.