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 0x7c4c39b848f01dc74499d3f4f78c124a10be69f14224acf5b7a38589eeeaeb0d. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d78c4477-dc1b-436a-a67d-b04b0520dcc2.json and https://artists.proofprofile.net/proofs/artist/d78c4477-dc1b-436a-a67d-b04b0520dcc2.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 0x904762bd2bad9707d8bdff35cb2bd4df720b3561af5943ad9c203b1e94bdb00a. 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/US7BB1200007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbe0b02687bc585c798dbfbf00e854477b5c0eab3928572f8baad7d3e67885c0. 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/JMC781700001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd879091761064e2bc6e1c21de433b2d6a2974e9ee4a109dfa771ffdcbffff4b3. 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/JMC781700003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd97c4b353eb1771b0c43de22f9cd95ec0fc3eb33a78de7f0fba726c2f2bb663c. 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/JMC781700002.
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 0x54334fc8d47fa566fe549133cfd26f8ed260070d04c7b05013a804582355f9a8. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/JMC781700005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3af53136e180b008e49043021febbe14692c845c6f4cc1ffceb173759e2fbebf. 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/USUYG1040217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf07367b7e9826b3fe5a01f0af906ddd568bc6a484070bb7d34f4f31503d0c421. 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/USUYG1040218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f7c6ab49a5bc6bd4f64d561a4f9f6fa52f3fceef6c61609540727ffd85d879d. 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/USUYG1040220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed164257b4b78ff96dc138d6d416e9da89585d3db6fa9a8a9be9d14f51938065. 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/USUYG1040223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0ff6803172ca4eaacc07aa3baaea4b6f24475d89315da167fe08d5b42103fc0. 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/USUYG1040224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9d1e90b977d4149a77c0178cc22d8d6f1e540533979d6953da55a6f3f0e3403. 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/USUYG1040226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6313c5b46dfc92b314c54a551f6a6889fac9f49a44a0ddf8fa7f3785d814c4a. 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/USUYG1040227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b065ff7a72c0bdbdc3031bb85956daab0e14b1334bb44184ed9ebec59684757. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/USUYG1040225.
100 Pound a Kali (feat. Kali Blaxx) - Single
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77fba5b0a5ba7781217d204242f48503a79b75ce8747bccbca4c00df11a0a579. 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/USUYG1084896.
Reggae Mix Tape, Vol.7 (Mixed by DJ Smurf)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf17e29ba55fedbc915f002357b306fcfb2e002fb963612a5a8605a5b888f202. 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/USA2P2236870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbff499bb531abd1bb8a334cc50e58b5c916c5bef8a7fb90a60bc0ca691189d54. 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/USA2P2236882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb54d08f8e1e42502fa19ff0136f1cd1161a9f60892d4377c0f40d68bf8befe78. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/USA2P2236871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x062d6deebb02c84c41f5a772e95aabd321601cd2ff92873a2cc950e4df6c6eae. 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/USA2P2236873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8144f031e04b1f091975be43d55d5e91bf4b631b2301523da16f3a64acf98670. 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/USA2P2236897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5713afcbb871be266cb10bea5a6bbfe7b60f7a212ffd7a9786e66ca845491f2a. 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/USA2P2236879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed14f2b9b95daf7ba9de1c67b978a11e0b042c7ae51e5f7ff7c1c88943bbb648. 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/USA2P2236886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x979c1e2e7b4510294c3614d75d11b50294bfb5245f4dec9be1cd57e263fa2181. 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/USHM80819274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf178bb69e9218039f8890f96a3a4d1c74cb2bcfb12b319870e45fdbf0a4c82cd. 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/USHM80819276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9814e6b47d2b19be8b6bf0ff97bcd5ba2c9e56170cdd7966c7e2ceec1b82714b. 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/JMC781100049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x917b387766e9aa953c8e63c0da6f91eb2f5a2c69798f527bde28156f6618e520. 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/USQY51454230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0154b542b3de50c014984aee0f68d5703965bf66e8b85a2bbc8fae9735ce3d76. 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/DELH10900753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x209076912532ef6a766e4e2f03e2ec99d6574e73373eabfcf860bb749a07cf4c. 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/JMA241200016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe0ae438ae55b6be35058c7c5961df49692da33f7e210006ff29d4bcbf4f5c40. 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/JMC861400001.
Rahtid 3 The Ultimate Reggae & Dancehall Experience
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1096b4c10099f319332ceca87d3717b9ba9459e92999763b0a521fe1e17ae966. 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/USA2P1924535.
Producers Choice Vol. 15 (feat. Chezidek, Perfect, Zamunda & Kali Blaxx)