Ran Nir () is an Italian, Israeli, folk, pop, and Alternative singer-songwriter, producer and multi-instrumentalist based in Sweden . He was the bass player and a founding member of the group Asaf Avi
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 0xeb9c90eee501d03611412f94412ed4e85b2e5011e005512db93e81f18a9affcf. 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/e1b6a5da-285a-4ea8-a0c9-518972c2acca.json and https://artists.proofprofile.net/proofs/artist/e1b6a5da-285a-4ea8-a0c9-518972c2acca.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 0x6ab404bbc8c605b85c1f15b8c4f6f3b9e8ac4e5357d7fc09a68bc2f10a102d58. 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/DELK22200065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ff6b8f9b04e2d65949eca5c7a0566e52bf320cdf5ec188dc5e55aa9d0a9c551. 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/DELK22200066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac3a2fb277d94ac6c65a5f7501bd0417bbeaddaa5ac1e92007e391e3edb9ca38. 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/DELK22200067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc72321a8f39889421b3ccc5e3f85112535feb00d2eddc257dca25f1204cd6364. Chain 2 (Bitcoin): anchored in block 960309 (2026-07-30T20:35:49Z), 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/DELK22200068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c68bb61b571e2d4bc8616b088daabac17455ba916a9e57231f672d21d7ce014. 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/DELK22200069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x439059630a791215b4dadceb139d71fe921651d7ece50b05c68e18859aac18a4. 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/DELK22200070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfbfd90fc14e7b5cdf31b8e2eca13be733a04c2d6a7520bda17ac23cedbb1f27. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/DELK22200071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19b983f4ddea6b33e6a31168e4c587768a39c0403fff00928adb756112f24512. 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/DELK22200072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5790238be4903ddf240e690390c1945e088b9faeb09636c5b10d780b674c86c3. 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/DELK22200073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62fdc85d06662cec2c23ac3067d3446eb05402948119a093d26996add2810b02. 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/DELK22200074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6ce99ac913d7375cd1e8de9cb39a32be95f5f8f0d3d18f507f76422a00d4d9c. 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/DEVK41900200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3380378bb7c681294a6f03ff81d345f0aaff2c875e7505605fbaf6612812f11. 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/DEVK41600143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff16c46b59504c44dbb21ec38934b3fc7e4aae1ee1bb1f5dced4c786bb0bf452. 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/DEVK41900203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9776562bcfc910af9295a73cb52ecd5cf4a8bd98a2f8c5706e7cf6223b40db2. 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/DEVK41900204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe514711d10c59fa6790a34a3c76910ea6b663c540d82e141a40de9aeaf7c3447. 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/DEVK41800174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa58e5350e969b0c81beef68b095640c18027ca0f9605f616362b9d156e9adfb7. 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/DEVK41900205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e4efc0a08ff296d53a22c221da5a11eda82b97d17c98ed287dbcb9fdfdf22ab. 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/DEVK41900206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x747bdb1e7c7ca550f4ffd75f9fb5e17007a8872dd5803e76a3f63d0bf02c7997. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), 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/DEVK41900207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6ca13f4dd4d453761871a0d46ff4dad99908f5810f2ef74972bcfb120214029. 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/DEVK41900208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa144af3b19ce5fde6a3f8a59d3549102a66338cdbcaa1e2973e048bb7d70fdc. 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/DEVK41900209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd57ea5c9627628be7fa4ec395ae196339f2e18ee32a8281b261d616683182dbe. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/DEZC62499647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc1b4904ecfd37faea519b7524645bd945438651d4706214891d06ac4751a550. 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/DELK22300047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ab404bbc8c605b85c1f15b8c4f6f3b9e8ac4e5357d7fc09a68bc2f10a102d58. 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/DELK22200065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe96b830677c05848f8582d48f63b721887091e4be7073f3a6112a5ff54f77568. 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/FRX202084607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cbe5990aafa3c9b655a685e74467089a261be4db0c2494befda73051336b046. 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/DEVK42000268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6674916cc2a7fc26ccfb38422c4c4243a6ef0b8bb73e7de693cf66f1454ab930. 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/DEZC62583290.