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 0x35d7a4bb4518bfa573256faf656d2962bee632f0ceb63119cb706d91ee93d524. 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/b500bb79-1e04-4c9f-812d-68d38bd1b153.json and https://artists.proofprofile.net/proofs/artist/b500bb79-1e04-4c9f-812d-68d38bd1b153.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 0xd33233e829115868f76208e5f810c7817af8632ba625a31c539e357630665c5a. 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/NLA271000242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7eada1ae25106b99cf28f3df7db00956cddcab80e0ae16681fb5714e4a41e9a. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/NLA271000254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef2122cd8e9bd46cadd7063f913847c50a55180f0065fb0fa7bce241f0b2967c. Chain 2 (Bitcoin): anchored in block 958816 (2026-07-20T03:51:05Z), 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/NLA271000256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcc4fb8a858946617c9742a6d6e30df06e18efd89cab1da4977c40f224eab6e0. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/NLA271000263.
Say Bye - Live @ Galaxy; New Mix + Mastering
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdffe3fde1abad5e717a4dc6a60e01416069e6955a941b91c552d541d56e12963. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/NLA271100243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0555e645cfc0282bfc75c5178b757efecd82fac90e2b471828ef2675ec2488aa. 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/NLA271200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d2da8be1c79b68155c965447745e8b6ae1826fe81d485c6cd1387719faad36a. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/NLA271300006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99a8c1d980a006e37bcdbe933ab71ec418abc59084313fe3cbf31113b50a702b. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/NLA271300015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x754335c34cf70c3ecb644409d4170df9d14eca524d51728df8dc5aa5b2bbdd0c. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/NLUM71400347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6487882ae71313e001559b87f5d428e9f674be7c9daa2150c2a18810f0684c85. 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/NLUM71400348.
Everything I Say (Magnolia) - Groundwork Rising Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33b8c854e179d876f6e948b71432df918860ddd7697a5115f24596953cec21df. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/NLV7E1700001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x974a5e62a5abac9f28b4570ee33738963c80f7b623492b30163a414aeda37947. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/NLV7E1900006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd822a80d8c093d3dd6c74f8350bc20cbde69069a21a717cfb6f6d14543a036a8. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/NLV7E2100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd822a80d8c093d3dd6c74f8350bc20cbde69069a21a717cfb6f6d14543a036a8. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/NLV7E2100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x196b261c980627b69e27fa8dec7de7669f80dc7468797a62e1793676bb23bc34. Chain 2 (Bitcoin): anchored in block 958104 (2026-07-15T05:34:05Z), 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/NLV7E2100006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9df717aba2eef0b863b8857be8ebe8b06a0517bbc7eab5667876d04f68da8567. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/NLV7E2100007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f0d426a9b3c542ef5b87280be3eb0e0f12de16dd8b0e0e1239763f2781cf635. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/NLV7E2100008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x223ad47710606d292fdedc263c4f7d19b685fd0b62fe7189c03f0eaf1aba4a21. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/NLP972300016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a92266db95789a5696c56317be89be1d7d95107e0de7b073e151093f0979f44. 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/NLK4K2000002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x203b3617d31e24db9a41daae92378f1f39a7909f0e4a365943985b0e3519181a. 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/NLH210800321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f655c14233811707f6b255ee310f7c0649e56580bf6ece6cfd6f4520eb04c40. 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/NLB601900224.