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 0x572d078a129df16b8ae85b139d1944c148f155039c870491d664be9a15649258. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ffd74932-8d41-417d-b18b-21c37fc70203.json and https://artists.proofprofile.net/proofs/artist/ffd74932-8d41-417d-b18b-21c37fc70203.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 0x710932e2fd995368eb4d1a29edb56c945381958aa5f43d068095cf4ee33db2ac. 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/US83Z2223348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaab5a544ab1d66eaea9ffe6947198cadb14f7357a5e7d70dbfd0e8edd3539f0d. 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/US83Z2049526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec8eabc43221f6a58ea8f957039e4c6aaa2ca3efca870d6b8f10ce629b610d1c. 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/US83Z2044509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94c4f5c71fbdddce6ccfafa2af3a5a2226c12395e84da2ecdd49c8c82aa6fad5. 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/US83Z2221207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ff9d13c61c18f3abf834f5d68baeb8f28ca91c285ebae72a5802f7b5b438c5c. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/US83Z2111997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3ae6eecd25abe6b06fd70c2b0b33f2ed4ba327801661d9796ac173e0380afd6. 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/CAOOX2200052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x513d6d8200291b58a10c5a0228c94092333cd4dcebfca504d045a0523174861c. 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/US83Z2125049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd997d6a07f48fdcf6ce1722e802322fc581cc46a3f01c5f9ae9b9eb06f2c6d90. 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/US83Z2049522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3409c2fd8becd63a068e1c56f0fbf1ac41bdbdaa1701086d1556053b8b08b07f. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/US83Z2015720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdac7964ff3d7d80fb0dd8c28d7cbb0ec6972015b5ea9194a53f7ac7e76e974f0. 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/US83Z2221206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84e4a2a5b09e44e3e457b5a80361ef84e463a4dd0b762bcce00361cdcfe91909. 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/US83Z2221210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x778085c283f78d81131284e2f743e88b37bee78c23a95d68b14903004a5443eb. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/US83Z2038567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84e4a2a5b09e44e3e457b5a80361ef84e463a4dd0b762bcce00361cdcfe91909. Chain 2 (Bitcoin): anchored in block 960330 (2026-07-31T00:58:21Z), 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/US83Z2221210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15703a60b0d251035e5f2b83b1f1b8511dd64c4eacfc75de62dabd79a83d1d68. 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/US83Z2221213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeef560a3bc2f35a2594d0f0401dd4a5dc3cc8a259208c0e16d14fb503af5b1ab. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/US83Z2221202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd334d67dc310ef997dd0b4462f77cab290cd6740520468777e5f872d706aec0. Chain 2 (Bitcoin): anchored in block 960225 (2026-07-30T08:04:30Z), 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/US83Z2221217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x667d3da049e4a7c8ff3588d180f336384a148eee00aee7190a26f31747f3968f. 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/US83Z2034900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecd27a36e18a6b38c6306111bd98e9723875fa121bfcf0a47d35bc87a67243e7. 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/US83Z2467888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2acda20e995939fdee025892b322408cb984c6e4349bab7b1ab032bba0502ac9. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/US83Z2211439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce901a8c98cf2e38937fdc697597e2a7d38d3633f3251b699de74fcfce14d936. 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/US83Z2211437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93725f0fd028ee1990082fafc1d2a9d8fcf08fdab83bad98ba990baa1af9c1a6. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/US83Z2211436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaffb1efa2cd114f728a91fe9503e2a726c59613519ca1c05e131c7b1ed370ba. 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/US83Z2151212.
Super Elastic - Daniel Hokum Remix - Mixed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a17ee1fd2fb78da9f08d20903ab1193bbcd3b62c2ba38d8e963e062a9682181. 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/US83Z2203819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6293cc884095f6d5a1316e82adbd182b3acb41c29e3657e3c5d073913fc270c1. 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/US83Z2014385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5bce91b4ed3c6b1f5de26aa925c62ed7e6826b182eb8db224398505a68e7514. 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/US83Z2219127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ad3345585b0451cb3dccca056f7e0b7d176143b836a8eb17076b6b87baccb01. 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/US83Z2108732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe2401d05ece2e4b051d1df4f3aa7c2605eb44de1e919649cbfa0ee64fd69764. 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/US83Z2149555.
Celebration Santoor - Mula FR Remix - Mixed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a1bbc36fcf6f4b71af45104fd8c876f068fcbd0350d120f4fa2e752e30bca81. 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/US83Z2207155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e6de2441ca51f752946ee535a378b79055817ee81454b961b22d4f9ff98254f. 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/US83Z2211004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x111a37c45d88714f2eb1adc908a8fa0c731ce2d94d4e9e0ae42039b1511bcbc9. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/US83Z2151512.