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 0x9634f350659be00d75b2ba5547109c7fc7ce817117df2c05cdd228357c032a70. 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/306c0974-92cd-4acf-8a8d-a4068afd89de.json and https://artists.proofprofile.net/proofs/artist/306c0974-92cd-4acf-8a8d-a4068afd89de.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Last Songs I'll Write About You (for real)
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 0x1519ed5f3a9f4d5c313d2c1c0b780557c4eab39959af4c1629b9f212bd9b29ad. 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/QZHN42394847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14b5abd603d1da5a09d44c2caad4a2e96f1c637222d9cd1f349c0cac4a46ed7d. 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/QZHN42394848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bb88f5be10e44b960866d22543e784156057946e26f6b68b60dcc964eecfbbb. 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/QZFZ72345544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbeef37e4bc2f065a6c01675e7021eb4e294acac20f0d945158af56f8ea99e8c. 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/QZES92393348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf19808618710a21ac2f9cd6f6cd7cfee0d2fee4418e632e4547f4caf4b9cc2d7. 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/QZHN42394849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5398741ec595e7f0d12be26d0edf32601f3f046e744a35f8e208fde922e8af18. 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/QZES52325840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff200963ec32cfe943c26aa24947a9c773a30928866845efff1f7b9c26767d8a. 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/QZHN42394850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x504016bb61d254c15caab3e504f28a0f9d02a6823120b9fc04f98625d2f507b2. 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/QZK6H2355481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf5b5c960b2b701c2c74ed5f0a62c65901fb4c87a10e1bb5d830f6332a125936. 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/QZNWS2325147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1519ed5f3a9f4d5c313d2c1c0b780557c4eab39959af4c1629b9f212bd9b29ad. 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/QZHN42394847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14b5abd603d1da5a09d44c2caad4a2e96f1c637222d9cd1f349c0cac4a46ed7d. 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/QZHN42394848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bb88f5be10e44b960866d22543e784156057946e26f6b68b60dcc964eecfbbb. 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/QZFZ72345544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbeef37e4bc2f065a6c01675e7021eb4e294acac20f0d945158af56f8ea99e8c. 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/QZES92393348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf19808618710a21ac2f9cd6f6cd7cfee0d2fee4418e632e4547f4caf4b9cc2d7. 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/QZHN42394849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5398741ec595e7f0d12be26d0edf32601f3f046e744a35f8e208fde922e8af18. 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/QZES52325840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff200963ec32cfe943c26aa24947a9c773a30928866845efff1f7b9c26767d8a. 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/QZHN42394850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd14ccfb73423d5753d7d05d83dde81f77c57067086f458fc9c592ac4dbc4c557. 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/QZTAT2350314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x504016bb61d254c15caab3e504f28a0f9d02a6823120b9fc04f98625d2f507b2. 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/QZK6H2355481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbeef37e4bc2f065a6c01675e7021eb4e294acac20f0d945158af56f8ea99e8c. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/QZES92393348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea12aa78fa0b7c8b91f1f17b42fb8a60b04e9f2db6a754b38619b140d34d7455. 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/QZTB72217127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x744482c2ad4babd5f394aa2d4a9957d9effc3b9e1866dff61a5490a4ace9b0b3. 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/QZTB72217128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e18d427d813b0ec9e3156a47a8da657f7c577c4599b886f1b7224f3d4ed2284. 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/QZTB72217129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe396eb69d1795d180ae51221ba1340ec32b134b4ff516c5b19860dfd22a8776b. 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/QZTB72217130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x726a053fa8563c61dd79b866342530bc0208ab5ead42890faf2c8ab70a41b086. 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/QZTB72217131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe3c120a1824328f855769aeadd8242a6d48617ed95ac431a3834b21e8a8d143. 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/QZTB72217132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e374fbf86d6dcb187f6a910e147026520d58e3cb5d43a13ec2936a6eebbdbd8. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZTAY2265689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3625b40730d47aee8db46d9c162cb6ed89a42aa2123bbdd6eee61bfd0037c0ac. 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/QZMEN2290380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dc01d437203f2971693623756b333fc23264ec142bd1ecd3af7291aa342a806. 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/QZRP42247185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffddee5901e85fed0d8ba5097618d0ba358aedcf2c33497a9981b72f3df9124b. 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/QZK6J2202366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52d0852030c4aebf487d98f5ffcb76ada92466157c6e36a9da5c4b5861421325. 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/QZNWX2294481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92cd27c3554d46dbaf628d9795e7fd8c9f9f42e689d3543e53c3c78e6b83e36b. 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/QZHN62208552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36016fd99144e5e39845d9a0c0995366147df91a54bc16382e859b98a88e11eb. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZRP42247186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52d0852030c4aebf487d98f5ffcb76ada92466157c6e36a9da5c4b5861421325. 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/QZNWX2294481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3625b40730d47aee8db46d9c162cb6ed89a42aa2123bbdd6eee61bfd0037c0ac. 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/QZMEN2290380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffddee5901e85fed0d8ba5097618d0ba358aedcf2c33497a9981b72f3df9124b. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZK6J2202366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92cd27c3554d46dbaf628d9795e7fd8c9f9f42e689d3543e53c3c78e6b83e36b. 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/QZHN62208552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92cd27c3554d46dbaf628d9795e7fd8c9f9f42e689d3543e53c3c78e6b83e36b. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZHN62208552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeda0086dbadb455a0a7f951dadc3084e6568bfb70fa6d4f9b2ae365711732f97. 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/QZHNC2135252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ae2c3672e4453db1b9d8b2a4696f1f4a4fe32774d73864dbaea626551b4dcee. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZHN62189950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e68ef796fd893168e3a416970f307f44a0357d665840946b0c468c957ac3218. 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/QZES82139273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a334f27f6dca63dc3c1ad696be86b9ab25ceee3f992d1e4da0b4b4e2efaf161. 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/QZDA62198317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f5a9436f51e6b51653cac946c320cce5a90e834964411c05dc6c795b91788c0. 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/QZFZ32133671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a334f27f6dca63dc3c1ad696be86b9ab25ceee3f992d1e4da0b4b4e2efaf161. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZDA62198317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f5a9436f51e6b51653cac946c320cce5a90e834964411c05dc6c795b91788c0. 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/QZFZ32133671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefafa938422b07ac562e9050902cfeaaeca3206d650e4dcb780c8899f3b81511. 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/QZFZ52126089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7c88bbf7d904a83aa3c43da089789d6610b80db8b4e806141816ebb3d89097c. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZFYW2180591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb002abdeb9666cdcf87e98a1bc0f3fbf2833e9df4c2c99f32c1d2302239f7aab. 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/QZK6G2049182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e6b6a6fde18f6e699d7f9a2889a9e55852768512c3bda6117ef1744948f3dff. 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/NLD682003141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6820c4b422f913effce74db1df6b82055004450904abb067af9f02b798b7697. Chain 2 (Bitcoin): anchored in block 960276 (2026-07-30T16:01:17Z), 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/NLD682003139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdc101913459ea69281d7b14198eddeecdfc36d918f3181587481d62d1f15dbf. 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/QZK6N2091063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd5a2bec4333cdf9945f3b0d7f4bd2199e371250434f5fb6276d77538d917995. 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/QZHN92083906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab1ec90c173b0359eb237066051e49a1201bf9ba637d09f1f5a6bfe828472848. 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/NL2VN2000025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe86a50514cb50eb23f8719c4ac370bbd089550996219f3fa81e22d62b658c9ee. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/NLE712000296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78802e66dab0b2599d4b621f648bbd88b3c2a65fda1c74f292c7e8f972864d72. 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/NLE712000295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x958819b2c392ec5b41e8753004c2076491a5525c6bb8b4e2e75059fb6e014cea. 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/QZES72009096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9435e31f288065d86e082d8da1cfd4c26b4650aa88dd796daa11633a893b17cd. 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/QZK6N1951972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29a52d0b8cde7687381f91f1e5276a62438450c2ca20b77cb7bf1a35c060ef49. 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/NLF711905879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ae33c7efef3bc42c0167d360b297617cb05fe01aa9df5b027e284007dbb3090. 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/QZ5FN1948688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49dfb64c95b0081597227ed0d87dbfbfa40b772ae57dc461f47bd35eb02beb63. 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/GBKPL1806932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcbe6485b62e4c41f86066e25014ccdce4a2eff391ffcc8200b287a06b2e9197. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZK6Q2455470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e16490210d8dc1a3725b9fe1df8098c39703b6c5407ede1e4644620ae553631. 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/QZES72495196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa669b5ecd9430b8d005c8b18075c9f256c5da0e05e9d61a8ceb2648f2ec5c496. 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/QZFZ72443561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b16cb8ff0985eb76848efc14065449306d93337a65d603c4faf2f71282d9ae9. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZMEM2454240.
ASOT 921 - A State Of Trance Episode 921 (+XXL Guest Mix: Ruben de Ronde)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b2b1856723a2f60ac8d26a10cc77e8a5034c95970232c87652290fabe6316ac. 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/NLF711906962.