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 0x3d8f6120eb9c157a488b33ff1218c4a68f87f604afa5cc3375566545248333ae. Chain 2 (Bitcoin): anchored in block 953997 (2026-06-16T20:07:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/237cc321-b6df-49dc-82ab-6ab1c7b09214.json and https://artists.proofprofile.net/proofs/artist/237cc321-b6df-49dc-82ab-6ab1c7b09214.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 0xce60461037f26ea1a098402435441689424be1e803ecdedeefc856cf96eb89af. 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/QZMHN2059889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0eef704ab80c1b9bb208d135e2fb263220b17a9decff5262713877ac22db321. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QZMHM2057235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3532faa6d36b000b1dd8243e66e53b14fde174f2096a28870f4d45ad4911e827. 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/QZMHM2073471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x610247457c6f2832c1250d64cde63478de4af3d19f722433e7a1b30931eca16e. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DELJ82018159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f7fb018f213e31055a20d8a7f9ce548c87c00937050e2f985c2fca2f07e166a. 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/DELJ82018160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9fa63c7bbfc5d35f187495411d03bebc0253566beb019a85c492d8230981f60. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DELJ82018161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b5a264a8defb17a777d7412c849bc3bd10edcf7b5a2e16c7d6aec0f5ed3a896. 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/DELJ82018162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb268feb5697c427266b44e79013b50c4afe613c35c355c8d50055bcfb536a330. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DELJ82018163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3241fc929668a4456bae285cbbc4cc25e3b63ee781663dc5913c5eeba28296fa. 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/DELJ82018164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa77aa8c21016a3565e79820c80ae1b1bf026ebfafaac73cca8b1bfec12094296. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DELJ82018165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x356a35d71783f339791dc9fcd84f84ed96ae37763b2ce6c280a27730d59ce347. Chain 2 (Bitcoin): anchored in block 958042 (2026-07-14T18:24:07Z), 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/QM42K2001197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaad190c346c8c0c877331ed6fbe3c0f529fd8b839540f9db06d1795e603dd83b. 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/QM42K2066124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37bacd02109568b7aacd5591fe06484af76001bb2c088855c316f77ca0ce886e. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QM42K2033269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0925854c70f32a15b5792a31e6ad1379e0d640aa2b1e3b1631d85c2e248509f7. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/QM42K2076252.
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 0xed55da16f60d1ba4fa2206e23e652ccd3d5e2d4ce4c91dc80aa64013ef41d061. 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/QZK6F2105162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d8b3eed87b243d409b6a73b1e4f06e0e9229206e9e9ae24c1cddb5e7e650c6c. 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/QZK6F2105165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeccb0b1816d0f01be775bb5dacf24715aef0aa0b3afda69e5687cb827b45f73b. 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/QZK6F2105166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a23ad0881f0f71bd008481e17761602e50d56b19a206b0ebfd91b6c5a1c4f1f. 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/QZK6F2105168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d8c8fe59b7dd11565c301d31cecb5a38ded88a54f8d93fad0d42093453bdaf3. 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/QZK6F2105171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c342cf14248a2a226906d701e81bc6850783cce42f6358fab3d42d0b15b1a61. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QZK6F2105175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2d98f789aa9d7d02b6a0fd2795594c389fce86b5ee2c29b658a28b76db7b1bb. 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/QZKDK2119871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb48f5ded6a5904f1bc86cbaecb369893f95a02a2d2d610f34e2fc158769a0bc2. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QZKDK2153466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47839b88863e08c1db70db81f121c438c6cf5003ee569d4484a526e2f4ee38e4. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/QZKDK2105898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x517afa0155dfeb1be0c13eccf9a574cb4112e6370d6d4ef5dd78ce00335f2229. 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/QZS632180918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45d34fe9796894c11329bc164a1c02dbf5c82041ac386c656e3a995595b84646. 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/QZS642148781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6db7f0ebc7db92c43b99281264a92ce8edf033e84e9297afb3fab10911724c7. 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/QZS662120014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57a7e70833e5a138b4e6d590131ef7155813154a135953e646e2fcaefb0772cf. 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/QZS652198973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x908bd0bacc5ff0cae8202b81f3fec5afc9aefb324b1be099d8e27142d4c55c17. 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/QZS632103081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1e146adb7db628beb250b724b71ed494f442200b7aa64808a167797e461790b. 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/GBKPL1811009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e7b14365630b23bb86c9833fd9aedc5cc5ff9121a37a141360c441f6c4ab8c4. 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/GBKPL1811018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2d89ce62cf45fccf4de1b082aed8aca64d53bd45d5446bad188f53d776dbe29. 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/QZS672432406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca4bd2797fd56711202ee373a06391866f9496c4dd585af95c141fa3ba519f0c. 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/QZMHP2461995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35860fa26966167b5f2f7c0b9eb667f63e05c26658c70aeb54a4cdaf9df447e7. 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/QZS642492591.
4080 Music Group Presents - Da Streets Iz Talking
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x614d337a0f7fdb49875e46afcd33c99edbef9e38da2c810e3cd0e3d54247fdff. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/USLZJ1590364.