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 0xbaa9bc3968786424f997cda188c0b768cbd3602ab7ec54adc2ef9a34444cfffb. 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/3d26942d-ba2c-46d9-9734-68f05a1f83f8.json and https://artists.proofprofile.net/proofs/artist/3d26942d-ba2c-46d9-9734-68f05a1f83f8.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 0xc798f9b37e7e552ae9ed958726cfbf61d7286dee92a27342bfb922a77e3a2732. 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/TCJPB2451544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf17bc97b8eb704ce8d149339d68ec461036958cb535a8cf4467937c16e87a5c0. 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/TCJPB2451550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95955ff41aeda4a599cc2bd939389556aa1580651063c310ef7be98bae7f3ff8. 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/TCJPB2451554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc48210f5acd05bd13636fb822b178ee9045500a40e204e11bb0c835e8b2cd7b. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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/TCJPB2451549.
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 0xf8fb9a2ee3594ed77776baee5a3e7077eef0a7ecfaa304cb1097d5c07d593ca5. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/TCJPT2285638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3951cd8957cf3755670a51cd7c867dff77b3f20426e79f47be5a36fb6a79af54. 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/TCJPT2285649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a15d4a27efbcbf154ae481d5d25627eeaa25ae1c3a57e1c2dd18c50262bd2e8. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T21:00:25Z), 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/TCJPT2285651.
blizzard (feat. sheidA, Lil Roar & tovgo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cc9eeffe58a5286ceb41fbcd404d70b2d244039f503eb7b4e859b9e03f5ceb8. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/TCJPT2285635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42d07c3abb3da6a04c272260e443139ad06017524d4e1f61cc7603147648e57f. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/TCJPT2285641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x115933132abca7047fe98fde7daed4e1751630217a80f54adbf780e99646b0ac. Chain 2 (Bitcoin): anchored in block 960167 (2026-07-29T23:42:34Z), 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/TCJPT2285645.
Takeover (feat. Lil Roar, BENXNI, TAHITI & SERI)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1df930b9e2b77d9ebd7e6206161879d54375eae72014b0ef25b794dcf8e0e21e. 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/TCJPP2152583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31f8c5239183a70d853da69c025de84e8bb063c03be5f16dfe2e167de3d3e370. 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/TCJPY2322572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46dad7350dd4d9c46ece49d7c8bbccf909d0200a4137124b171ce09fd1e23a67. 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/TCJPA2489555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87dd35328d3b7e4b32823b25cf59e6ef83e977ae5a3023694fb9eebc5a098e66. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/TCJPZ2470967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc790d3789aef74452d8415ad57bb6df61e5b1315785bd845dc5d9698e97f8aba. 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/QZTB32477799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51b306dd716e822e9eeb0a1a2cb58a177646da986ca0e0864df080548d6676b0. 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/QZTB32477800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5fe18d7796cc02f49e5715815bbe422f12c00707e0c8f854165acddad2f5b7e. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZTB32477801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82a836b617f976c2e60d5674e153041f7fe6094d88c63a58de945ffbdba3f715. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZTB32477802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe77099aecdbfc1891fe4cf98c2ab0fd172633986ddd6eba59bf753f1f20b5ddc. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZTB32477803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16bf171216e3cec8dd23e1a8a215481ca9fa3b15b3e8a645be897c4721a93cbe. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZTB32477804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25e48c16ba106644c65978bf6007ca12676af58aa8b7c4de22f61a350555e992. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZTB32477805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8be34fbacb27adb5fe7d17015a23c312e7c0365c615cae7ca452e3c5170adf6e. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZTB32477806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22410ac8b176cf9b8aa8bae60303cf3ea588770f6279372bd4dde7d13d55e99b. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/TCJPV2305953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb027b1c0c4809a80a8548f9d9d72f53d488236065113907d4d11e02118d67f53. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/TCJPV2305942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x172a4f6d3ee9f58626a9af8864282db45266a2c93ec07dfae09611c2f401e109. 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/TCJPR2294366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52dac94bd614bdffa1e361010dbffe91c3c5a6f4f3f2799126fd740a2209c97d. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/TCJPR2294345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0757def8a39a199069c321325c3c8f7ad4532cad25a3441647c3c9931b1d092. 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/TCJPR2294357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ec50dca347b1fba97257c55104065691552fae84637499fcda830e792808995. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/JPP302500011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x528e4c8c139fc6f6f181488e9373216a590be8583730e3dd963db99a3d1b1f44. 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/TCJPC2492266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f13c352d8f037476206fd915fa9f040f4c4dbf7285682fdf8bf823d6f9b1cea. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/TCJPB2493832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc355d0a916f566e995ee1ee0aebeaa28079d91bfe508bfcb4bf48c9836961a5. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/TCJPB2403969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fb4aa8236ca0cde5fd64c40e3bacea9c21b9f16f34d29dc58dc7aa472beffcb. 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/TCJPX2321592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbff8d1d65efb3a2ca6239d068de7eeb3e424b58b279ad443e12922559e0e2faa. Chain 2 (Bitcoin): anchored in block 957034 (2026-07-07T11:52:37Z), 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/TCJPX2321597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x406c9000815ab7cf8a6dd1730e8dcb0dd6bddc85ef3db6089282a5546ac15807. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/TCJPX2321598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f2e18b6a5a3566b66cfd572ba101ee58ae14f1d6159725eec5ff1bc527f7073. 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/TCJPD2538471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f90051429988bcfa7276ca973287bfcf4dc65ea06ea9ca8a6ad77b883f7f1f7. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-07T15:12:44Z), 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/TCJPD2537399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8289374ed425b49b71f3593849d6d3ed074011923579e4de5487996aee6d507c. 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/TCJPD2537436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35132a92abaaa0e3e9ce1088cb273071eef782db819fb6efdc4c9dbd19515523. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/TCJPD2537389.
Scratch the Anthem!!! - vol. 1 (Remix Collection)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82b1b2d5bc4a85bf477f7b9e11564dfafe688c4ad582750ab08b79bb111ae7d1. 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/TCJPB2497550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4181b22a18aa2be3ac72b444ed81eeac4b7d47bab3741eb0cb8458931dffa28. 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/JP92N2452046.