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 0x31057d15dc2bfa0be315681c3f2c77c77cccbbf087fed01e49995f1a7db661ec. 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/6144bff1-6a62-43a1-8286-e323b09c86d2.json and https://artists.proofprofile.net/proofs/artist/6144bff1-6a62-43a1-8286-e323b09c86d2.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 0x1f750d0bd9f615b8d7ab2f2842859d90be9f06947e1fc7ed2a64647382227906. 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/NOJIV2300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe05798d5abd74d156ee4c621280fd8ad657c042f7cb67005bc207ceb78afbd1. 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/NOJIV2300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21db003f546c3fe20a49489c87c3d346a096f8b32e98475e6a42f817f41cd28e. 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/NOAJR2300058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1740a67c532dadb947c47161176b6e95b38da6fccdda94810ece74cd693dca2. 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/NONUQ2312010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcea0eedaaa58eb7e8dc9cf4fa4b6f645afe4b90de6df5857ebdd2425d6dd7f54. 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/NOAJR2300025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68d70f8afd17648bff92ac6b7aa8da879042ade03302e33f06e25080f7a69261. 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/NONUQ2211010.
Hør Fjellet Kalle (feat Niklas Marton & Baas)
Hør Fjellet Kalle [feat Niklas Marton & Baas)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc280a00e282945a53959ceaf3640beb18438e21ac839d0925617c03935a7861d. 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/NO2DY2500160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb538536c37b6cddff973b97f02418a2bb928eabd5ab3070f003eb7cfb13c7ef0. 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/NO2DY2500082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10e9e1a81d34b30ee1d2645d0816ad8d75090ed4efdac505c718942a5d2c3c2a. 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/NO2DY2500041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e12043f587ad4b403f44f3f40d8565c1791aa21b5d1f8d3db9ab09de70ed522. 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/NO2DY2400588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99b3415ba83da7c2b5fe02a579a29d8be8346d7d4537b2e479912c556487ce23. 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/NOJIV2400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b0c2b639ae662a0ec3e003c98abb86169998f530e0d6a067e0a630496b3407c. 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/NO2DY2400471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc47601a42ed324e19f51b78b8e50ff8cb56cd4c7e6cb1f654dbc69f8c556a46. 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/NO2DY2400266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd70e877fb95f3f6ccaa7f701113d7c631e4f3116d5d345b03a565993c27d5a72. 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/NOJIV2400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1740a67c532dadb947c47161176b6e95b38da6fccdda94810ece74cd693dca2. 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/NONUQ2312010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f59bd7aa6a45fc33a18aade281c2a6b8e9e8fd1ab7de14b3159f54e180a761b. 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/NORLG2401013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xded21c14767e16ba856e96b1ffcd9b5e87c45a17fe1cc4741faa6794f8124ef9. 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/NOXPR2400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ef8b1ff79dab828890ba2f0dbca797ad366b4cd1d1a0f593cef3376313fa6f0. 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/NOX8G2400243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5731eda50f6ddb9fbacadd79bd8aad1bd6a8c14faf9239df752bf9f348f2cfd5. 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/NOAJR2400098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f742e95c52aa11346517bb6d7db0ae155955c359a06295eadd1461517f2d064. 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/NOXPR2400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9d46942c7cbfaefe3e872d2b19bbe6b43030df57015267492d105f3e160b25f. 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/NOAJR2400095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99b3415ba83da7c2b5fe02a579a29d8be8346d7d4537b2e479912c556487ce23. 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/NOJIV2400005.