NEL or Nel may refer to: People, characters, figures Nel (name), a list of people with the surname, given name or nickname Nel (mythology), a language scholar and ancestor of the Irish people in Ir
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 0x6182a0ccb28b9d1348e5b0881c608383e5de794835f74409518ec8f19d6ce2a0. 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/5401a3d4-f79a-461c-8ff0-26fa13adaad8.json and https://artists.proofprofile.net/proofs/artist/5401a3d4-f79a-461c-8ff0-26fa13adaad8.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 0xfa080651891b25c2755495d8e0eade304169cc1523d6abf038bd4599f751ac3d. 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/FRX452260822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b11ef4e7667777f504e5cc3629d30788953d628eb39bfe2519f47ca5d307107. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T09:14:08Z), 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/DGA052210372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b07bbd637e6f3ad93903cc9b07a74c96f8354e7c8e8210b9d96804ec2f7ea01. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/DGA0L2357192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b4eac72746f9009eb62a4592a7c3f623fb77e2f4b05133b5ee9f68ff2cc9fc8. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T02:46:47Z), 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/DGA052440385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51d042ea5018625fa4876f54432927d482746896d00e54f3a5a8e1c0bede80c5. 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/PLV402201711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16eb00383692c6c7fc9e7a6d4502fa2a43c07dbbd9700cd9cb1a7d6ea168b30a. 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/PLF242514304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef02b59bf81611286bc9473cf8e6e50acc560998d556d8ed36d10dddf6bbb0d7. 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/PLF242514580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a9a4e1d182f58dcb894a1fdaed895d8fd8e0cd4dad2c053f0eac52c6ca41dd6. 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/PLF242413565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3654130375d7755a6a2013475913bda907f6e385b1a7397b43409269e3cf41c. 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/PLF242514581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16eb00383692c6c7fc9e7a6d4502fa2a43c07dbbd9700cd9cb1a7d6ea168b30a. 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/PLF242514304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8a9ad241a3a06aa9aad3a0c65b40f77671633681177d2f3914fa56f4ed6f227. 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/PLF242514423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e87509f0e04db185d610f3358e029fcb46f7fe4ba70cedb9a907e6a7dbe1320. 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/PLF242514534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5aa60e6bc3a66f0538304de23bf19e87f8732e82e9202597dc4c79578e88d783. 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/PLF242514582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44d6a08cbbe6ac0226a5e77e2e0e491db322e65b7dc49a63fe3d053c46b77a95. 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/PLF242514583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc46d6a998c5cc796a7489d407d4db10e126754c816e2f6111b5ed2433d67d632. 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/PLV402301799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8073e89a8b58918acc4cabc03543815fed631711201cdb3cdb15cc584ef39530. 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/PLV402301761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e87509f0e04db185d610f3358e029fcb46f7fe4ba70cedb9a907e6a7dbe1320. 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/PLF242514534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8a9ad241a3a06aa9aad3a0c65b40f77671633681177d2f3914fa56f4ed6f227. 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/PLF242514423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a9a4e1d182f58dcb894a1fdaed895d8fd8e0cd4dad2c053f0eac52c6ca41dd6. 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/PLF242413565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc46d6a998c5cc796a7489d407d4db10e126754c816e2f6111b5ed2433d67d632. 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/PLV402301799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8073e89a8b58918acc4cabc03543815fed631711201cdb3cdb15cc584ef39530. 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/PLV402301761.