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 0x9291939322261925216932e06a17d67765a661c8dc35e4225e9c15a200b6ae4f. 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/2bfc0670-20a9-44d0-b153-7c122a8f242e.json and https://artists.proofprofile.net/proofs/artist/2bfc0670-20a9-44d0-b153-7c122a8f242e.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 0x18ff5c09bc0eb8665125c0524b4cee3552b0b10e0757d1a22fae1b4939aed412. 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/QM6MZ1994140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x526098450abac821c6d6572b4dd3d9f0273e5783c072aff65fe3ee2d4555e52d. 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/RUB631900597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x907ac417c8eb621da96ac040fb6e176779c6fb0f7955b598d9d01fdebce4f525. 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/FR59R1983552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae07cf56490d79c3f50e213a1cdfa56048dc7d8de533ff5bce314a6c0ce7e860. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/QM7281917516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x261b79eaa55696a6a68b524267d62e4cab95d045b210a6294fb0cb83aa6681c3. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/FRX201971715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0699d2eab80706db5a82d29820d85024f7f776e57e437026a608ffeda6b94642. 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/QM6N22043418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e0d172b481867fe6a050e160f432227bf49ffa5799e249b0c1697e2a14985a9. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/QM4TW2126763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e5acc83f8a99ceaef7b4135c5745f9b87677d38a3f35577b59e0bde495cc290. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T16:17:58Z), 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/FR2X42141615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b10eeccbdf02b5a67ac4ebbab268edaec2d7b3be5d1a0e4f8e2502161713a54. Chain 2 (Bitcoin): anchored in block 958689 (2026-07-19T07:11:11Z), 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/RUB632100836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25e641f423a0e85afc9274df62891354560b44b25104cdb6af82358758fb07a0. Chain 2 (Bitcoin): anchored in block 958834 (2026-07-20T05:55:47Z), 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/ZZOPM2119192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37f4fb62504c14896ce54e27f1ebded2a39e7098ea306265f7a55b7c88a50ac8. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/FR96X2265504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeff7b7de03ce27995904021649a6c4e28bdc817f2afbeba116b58cd8b58e0ab7. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/RUA322201310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe18745209261b286bdfe78ea35109b486b5e2d21c91a95f5b769eac028f30598. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/FRX762272721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb98ccfd3afd94c31e97c4b3233c1cd71878b1086063a668743992d7335c759ff. 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/RUA012100298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f4d8a4bd97790480d4c15f0f3b440ec35e07047aa4cbc88599e80eaf3d9dc8a. 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/DGA0P2319927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4322f053d972b3f3eb59c8016672cf01afeeba569fd2ec6ad8ac8367e0bf1099. 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/DGA0P2319933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6a909dd94da4242bcc86f33551e4446996aa7d727023ab6923b1d9c80ba2281. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T01:47:42Z), 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/DGA0P2319934.
Рабские лекции (Умножить) - from Slam Live Session
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf02457275d56561ce9a4d7e38032671433b2ac31e33b313cd888d0c33f1bb1b1. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/DGA0P2319935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x516e0aaa5461665a3976d9c038b5e53b3b2a3d9b85db373183bcf2b56134391f. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/FR59R2426642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2651aa2a780a9865e0a846601367d6457c98a1d5ec56b84c5aded3c92c61adef. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/FR59R2426634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b6b280ce3f2fb3f71637401e1de4e727721750928236f413cb16b27b7f2b579. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/FR59R2426635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cec9730306cc990342f6213f11fb618b653b034927242aa0c73ac5533363977. Chain 2 (Bitcoin): anchored in block 959002 (2026-07-21T11:47:29Z), 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/FR59R2426638.
LIL BIT & 1 shot 2 (Waysberg Music Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c9f3afaec2703843edd022bb6984eec98d126a2c75cd24205ce5d49de85c877. 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/DGA092406969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbf327e430de505907ac215fdf5736b8a224dd747992d008ca917d17a1f681df. Chain 2 (Bitcoin): anchored in block 958850 (2026-07-20T08:32:30Z), 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/FR96X2571828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe7e89df03a32c914b95ed6d76e1777880f119927b43deaae82770e30b5704bb. 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/QZSY62100006.