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 0xeea587d5fa393a61e789a3080101a7339e08d3df0c42e065e432ef89c2f2141a. 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/162529ef-80ae-4af6-986b-382af01649f7.json and https://artists.proofprofile.net/proofs/artist/162529ef-80ae-4af6-986b-382af01649f7.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 0x92cb67df3a27a219f7a03b09cb17b7f4c0109c5f7ac8dcf4537268e7d1d28949. 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/GBLV61720863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5334b01fa7f2216e08e8052add14100175ad03e5c078b6e33d6116d6ae5fd8cf. 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/GBLV61720864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda32b5bf7aa5f1bbd7c526ee5072366c31bcb1f9f231e64628e6fc2973568b5a. 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/GBLV61720865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2aba2619745676fe9a22415d11caa92dcd79b4dbcd84ce8cedbe8cf2afe7f65c. Chain 2 (Bitcoin): anchored in block 960218 (2026-07-30T06:57:05Z), 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/GBLV61720867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cb8f2dd1851c1df27335c34a31fd669bc619e7b82a95d4759e3874b0e4730e0. 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/GBKQU1761803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7926bbb0f5cbd1159bf17165e035b32160b0ba0ac1f2dc63cb09a08030806cf3. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/GBKQU1778172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b8c17a80f94bc2e76657b02a865e879a6f6de887140b5d60f9a1e310137d57e. 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/GBLV61720868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6e2b0e483804f0ac2ff36cfb403aadd469b9403a6e94464a9b754f0931f16fa. 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/GBLV61720870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadf7f3d24ebcfde97102036ddd6c5b4b18bd829405f1ab7d3890ba6130ac6a81. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/GBLV61720873.
Rise Of The Phoenix (Phoenix Festival Anthem 2018)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb4fc37222576ae33703a934cdf62a7c228d8808389200812df548a546416d8f. 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/GBKQU1981704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5597b3deac9d0b9042709377860406bc62200b9f2f02c398c8a76f6b56ec891a. Chain 2 (Bitcoin): anchored in block 957884 (2026-07-13T16:55:06Z), 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/GBKQU1981705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a333a8d5921fa3ba1e84107f2c68b6776668e2c404625a29dc63d2ae09736c6. 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/GBKQU2052240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7ac5dedf876cee42415504aeeab4ffa58ec9b1f8f8c14d5853e34343c378998. 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/NLH2L2000169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1e8de3254ed9999fa91c43bfe9c0ae19c88c74fc83a2ad1645a547b7b465723. 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/GBKQU2169932.
Our Way of Life (Darkside 16 Years Original Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x556093d6da4e07a19aeccda4f5e050c285a113b5da3aafce6479eda51df343eb. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/GBKQU2208059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9c3aa3518656f6e413773dca9605499d17fae89888b3d08d6f5eab40683b6ab. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/GBKQU2208410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7de531d42ab6263bbeeb22cdfa575f9dcb233aa7dcf22d7975b0ed5d54abde2b. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/GBKQU2208437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x810fcaf80834977aa14243b105690fb13a632b0a92aea1b3931e17efde872fd3. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/GBKQU2208237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedf2610c8c3983591ecbf42b2980427f3bb3e8969dc3a17a0e82840c6b9c5bee. 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/GBKQU2208356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa87b45bc41ce6bd39b40cbb64b16c788fd89e9550e3674a2b153a526eb88d709. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/GBKQU2208430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x556093d6da4e07a19aeccda4f5e050c285a113b5da3aafce6479eda51df343eb. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/GBKQU2208059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc411b63780f223151720d8b0358ea0a30b80e867f81e716e5913a424deaf1ab. 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/GBLV62201541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71f14989677c40b04e204c9867cdf2362e061293666f7e8c7f9a7c6fd81823f4. 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/NLFL72300401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6df18187baa078c1750f30cc62c2a0f8e09bca572d209905a1e09e6c598911e. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T04:30:31Z), 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/GBKQU2534394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7c0f56d7b204111304031dc22dd064ef2f868c6ca304e34dcc828fc65bcfefb. 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/GBN4S1500016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89fdb566511c439642296483da545273a77dc8bd13d76263153b0b87c625e1a7. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/GBN4S1500017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b9df1f4a6bfc24d39bf8ca7250bda349e62b2e6ac89ee658223aeb0a15ff79e. 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/NLFL71900197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x467959f9c10477b5352949223883d262daac3e6b09f882bb10e84fb54700dc06. 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/GBKQU2019141.