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 0x22fdb65fe969b4e161331212e32d7dddf50f1a1847dd0b2065b19864a487b4d2. 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/1bb78c1a-1a28-412b-a0c5-f4955e7df52a.json and https://artists.proofprofile.net/proofs/artist/1bb78c1a-1a28-412b-a0c5-f4955e7df52a.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 0xae7f2476e1560443388d81f064df439b67b57a23b2768ecc2c5c0ee215ef2b4e. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/TCJPG1867524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bea765bc67e04a04607cb9c36a07434b969ffd4e60aff2d73d60dc783e938f5. Chain 2 (Bitcoin): anchored in block 958873 (2026-07-20T11:48:10Z), 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/TCJPG1867525.
"Journey" ~Journey YouTuber's original BGM collection~
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02d49a61c826d8e8b7f1d4ed4ba226690b3bafed455a3206194a82e5d426c561. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/TCJPH1872345.
YouTuber SUIT ~3rd Generation BGM Collection~
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x278aa8a3dc10720ded2553d52643e8eae73677a8d8da532bb7a373044d79d69b. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/TCJPI1980425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49710dcd4767b6e0c6abe2c0378b4a3cdf331561650a9895b2f2d5ec6620777c. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/TCJPI1980426.
アイネ・クライネ・ナハトムジーク (スーツエディション)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6d4e4f78a72f2b7b78b0a4402eaa2eb064baeed8028c0c7ed09eee3a6b24896. Chain 2 (Bitcoin): anchored in block 958529 (2026-07-18T09:21:41Z), 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/TCJPI1980433.
ノクターン 第2番 (スーツエディション)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x426e6874529dc1575bffdba354294b09c46451090b1929a4a3aed7edf00093e6. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/TCJPI1980435.
アルプスの牧場 (スーツエディション)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26d03407b392780d0847e8e270efdd982464986852ff655298427109628e7b1b. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/TCJPI1980437.
われは海の子 (スーツエディション)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeeeb0e1bd00ee4b358ce0acba2aa4b98f385bc13d98480589dcac55657cb00f0. 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/TCJPI1980439.
ハイケンスのセレナーデ (マリンバ重奏Ver.) [初代]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70e61a79873bb443b6ed337768461dbc0b44f63f1f5573b7fa132682848c9f99. 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/TCJPJ1935962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b1f076967176ca317f823a2fd1ba8b5f9f0ebe9dbe09830d26372b5fa0ca618. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), 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/TCJPJ1935969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3cc5c468e3363d3ee2a6f65cedcee331b7093888ce7e316c52115c2849ccf1e. Chain 2 (Bitcoin): anchored in block 958523 (2026-07-18T08:54:12Z), 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/TCJPJ1935970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd07046819fa8ae1bfc4b2308dfea709c195b1356dd641bd82806a9ca1b1d77a9. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/TCJPJ1935971.
YouTuber SUIT - Soundtrack (1st gen ~ 2nd gen)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ee9d14810345daed3fc9e936b3c869fb60c5139948adb0ac5af43d514c4ef5f. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/TCJPM2041047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6a802dbc6ad7106746af1e90b7dff46caff2b7dd0a3624e5c0a7a88910b7ee6. Chain 2 (Bitcoin): anchored in block 958822 (2026-07-20T04:30:07Z), 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/TCJPN2013546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe0a5ca57f76ec05a7e8ae75927051ad1b72bd7b16317669dcead9e95cc3a75f. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/TCJPN2013547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x696696b025bb731b7a481b3fd68739e311a0e8ac3b5bf15089f8783e033d9032. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T18:47:29Z), 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/TCJPN2018014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56e8f30cd42940cd811bae8b5764ffb9b53296663716d97131faf3e5216ec27d. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), 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/TCJPN2019011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee5e1e8a345870c00dbd220f94dd5cc3a8e2a201080548dfa33ff78c5b076fc4. 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/TCJPP2191546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd627862fa8948ef688ce6031d3466acf061cd9007ed9d7b1174541e1689d3ad. Chain 2 (Bitcoin): anchored in block 958800 (2026-07-20T00:52:19Z), 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/TCJPQ2126480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2afc37c2496cfd6f81ac1022faf209a6773b09a9f9d1c13d1d3d95ee78926caa. 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/TCJPQ2126491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x865b25ce04befa99f2dbdbf271813f31444dabc141b9683b67cd3808aa5c5a1f. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/TCJPQ2127000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe595b806555c9f26a8c0994511cea083bfb8d33fc93d9bac20a371d9cfc45129. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/TCJPT2254865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf94ea4d633a8a6908d91231fbcb3340f777da704742a29c5b6971c5a5db8a67. Chain 2 (Bitcoin): anchored in block 958590 (2026-07-18T17:28:56Z), 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/TCJPT2254867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca60a206863cc37e31ebf5ba0b1b2c67c2328dc588ea6bd06051ee2243d2d719. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/TCJPW2366804.
I've Been Working on the Railroad BGM - 2024 Remaster
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60b0f11280bacefe6841eeb23e8faf7983cea6985b7654aaf9507b5b2406bfcf. 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/TCJPC2401965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08313af1e9a227dd522840e89070700444eef37389c3952c6f46db8fbd971621. 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/TCJPF2565779.