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 0xd829091543df207184b58e167c78fdac5823dc0f04db99dd5ee3c63fc08ea504. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a5fe085a-cdd7-4b74-b2a6-adbe2582b2f9.json and https://artists.proofprofile.net/proofs/artist/a5fe085a-cdd7-4b74-b2a6-adbe2582b2f9.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 0x20b3bd97e69100a1f936237549fabecdcdbd1a8d8e3dd2eb449c66ae75d5fafe. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T20:02:07Z), 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/QZK6N2051919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d838398fdb6f19b6a4c48dd2a72ab99fd110131669cdd2bc5dc141b04bb9f34. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QZNWS2058709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ebbf89eb569779d2032f71c6052c72c804dc900389576ac19cb7095c193eae4. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZNWW2059674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x091f73cbd23ae9b745faca0af5602215db7c87fb2399b9b4e88c5fec633d7bf0. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/QZES62132627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x194f64fc0167e16b6e396bdd1864da017aac7f0a195b10e4437d1047d0db736c. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/QZK6Q2147580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68107e5067fa88ddd59b891be529bfe3e89ffd3314910bb9fbcb9ba1509e87e0. 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/QZNWR2166069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbf69b5026d106f9ee70cee4683c2f3dc21f0ec42d95c720cf6bdf92b396c838. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T11:26:13Z), 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/QZPLS2124490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb6be19322783d26cb643d19918d7754d8c72a2d8026de58ba2c3923227cf714. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/QZDA72244693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f23c8c512f3eae0b1c8df0600b7e95bf713365d04152247b7081e6880474c2a. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T08:29:33Z), 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/QZMHL2250210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37ceb6fd5d884236d01baf46ac13854c37ecb0a8a32f332f4ba6dc42c1991eec. 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/QZHN92268957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2e75f061c6ddb1655c6bad8d54acdbf44bfc73ad2e5c6d343b9a351462fe6c3. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T10:56:22Z), 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/QZMEP2244753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8762e07810ff1d27cbe58231a4c7e8f465bd43acf240c41504fe46e83e4e3334. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/QZNWU2223946.
what i see when i'm walking alone at night
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x794b5aa24de0dabf63f0581f413a2dc9ab26ab0a09a3197d299e0e0adc995fb1. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZNWY2264012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe579b682153b2fe2fbab62d24b596133cc5f7edc6050e281970872b5b8c71f36. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/QZPLS2293041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa615870d33dafd30028ae4242436ee6cbe81974ba93e00d3ede9ee50f28d8678. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/AUGBT2358015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x607ffcd2d047256dd42112a4b7553d2bd8f1540540517a3060448394757d81f0. 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/UKZGC2404911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7496a3d3dc5ddb8a97552e44efd512e0b58c42099f7a788a166def5530f59f4c. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/UKZGC2407746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b3afa8a89094d1603b16e1f3fd1f2da743f858aa2c0ce9b2670a0418124f8a7. Chain 2 (Bitcoin): anchored in block 957751 (2026-07-12T20:41:42Z), 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/UKZGC2408444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce04f6ce45a128239168e84370188bea30d4b701f4b2a58d8666d7ff7fb59db7. Chain 2 (Bitcoin): anchored in block 957595 (2026-07-11T18:26:17Z), 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/UKZGC2410571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e87b87cc5d861f6715af98e08da0a118bb8989e449ea3a562b61128131ee776. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/UKZGC2410573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef8609a66a8a9b00588f20cb60af23bb186d1cf7bc28d81bd7cf91cb41ad1979. Chain 2 (Bitcoin): anchored in block 958680 (2026-07-19T06:04:14Z), 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/UKZGC2410574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb00efa3353972bd45979dcc82fe9a83aac13277205fa5a13125711e93efca5f7. Chain 2 (Bitcoin): anchored in block 959065 (2026-07-22T00:45:41Z), 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/UKZGC2410575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb876d696a0ad1b9e58fbc6086d53db340c5402c9435c03a0b80f0bdf45cd550a. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/UKZGC2500653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1f625a30226dd06ca290ffa1de2c27561fca70f877447e35a30a5719b8022db. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/UKZGC2500654.
WE CAN DIE ANOTHER DAY (we can't die if we try)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfa243160b8ed7fa3b0da93bc2760b8e9fe11bf759d3616282f5e8ba7d0a2cfe. 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/UKZGC2506782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ebe7557ad4a2727cee98f4107e1787401005a5a72add7c81699b52e5250293c. 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/GBBPB2300585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe90c76fc0d0ae5a0a38662aeb9de83f9d7210c3905d6a2b06d20594fcaa32584. 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/QMFME2304653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57277e7a470b0f7b00ec9491f89f80b70cc836ceff7838586d010cb4d418f650. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QZES82242245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6246717f0f4b92acb4da02f4a5b21e41f549810af846883a1347bed5bf55cf6c. 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/QZFYZ2463310.
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