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 0xbdf885de78e723d0100a6ad1cb789b97725d1bfee52812cef0d2db35e136b477. 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/5899c42d-36ba-44e1-8321-349f200d4a0e.json and https://artists.proofprofile.net/proofs/artist/5899c42d-36ba-44e1-8321-349f200d4a0e.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 0x49ba9e9999752cc5509961ff4dca7521f76ed3cd0d8a2f17b7a804f18ea1d013. 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/QZK6G2199039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac28180444dce9f35d244da45ec1bb19f9b0562f1ffe298bc4091ec571d61ec2. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/QZNWU2160762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae11af348480f1bb4556fde4f38b891b6b5a0d2ab1d0619bd05566eb4d127005. Chain 2 (Bitcoin): anchored in block 956405 (2026-07-02T22:22:35Z), 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/QZES82289489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73a836b7c566f803f02098236dc0801c66858756d43e83f54140709449dfdec1. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/QZMEP2259083.
Dance Until You Feel Better (ØTTA REMIX)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3ea57b00c074cfa3e7853ce01b4b4d10123d74accd5796b743b57c7f39d12ce. 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/QZPLR2237362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbdf2249bac9f07897fc18c179fdaddf1efa1475c6b08d1ca195816558445eb1. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/DGA0H2440192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46539f124799a5ce594112387c5a9e23d93a4d84600f63aa89ed3d11a64d8da4. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-02T22:05:07Z), 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/DGA0H2479667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbdf2249bac9f07897fc18c179fdaddf1efa1475c6b08d1ca195816558445eb1. 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/DGA0H2440192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd53862fdc3583778dda43c92e67ab8ac4f56f29c4d1fe25eb7a90be2450f942e. 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/FXR752402004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a4cf40413a425bcd5aad2d481af8ea18fbe4a1ea229bd88acb76c42900c1552. 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/FXR752402704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46539f124799a5ce594112387c5a9e23d93a4d84600f63aa89ed3d11a64d8da4. 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/DGA0H2479667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb42a2b7dd46ba172c5ff7219df9a21f91a4521ae3445f2ff154d5235592f54fa. 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/DGA0H2493837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94b9391d5596e833f12b0c584951a28958ac27fe3fd084d8f476fac99b385594. 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/FXR752402841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc78936b7c98b31a2afb4115c1ee5d56fa3893ae57f3af8bc5b87d056082ce321. 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/FXR752402897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ae684d3d91066b151814fbdcfa44072340dc913e7ed59b6a196bd8a8a2c61db. 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/DGA0H2493839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ae684d3d91066b151814fbdcfa44072340dc913e7ed59b6a196bd8a8a2c61db. 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/DGA0H2493839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f58f546cfe70425eadaadd56184168dec8c49daf991f3eb779e7303857ef76f. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/FR10S2528290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x524b1bfb4459ff5893507b0be59d01efe82fb79a3ba0197beef36e8a833aa64d. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/FR10S2528288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6bf4ac0015048c2b2fb824692aced101c99358da204f0fe6c8bca6b07c48ccd. 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/QM42K2390435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc45e5b4388d2fa82495ed9224a7cef2ef045219d2113d8aaab09cd48ee392eda. 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/DECY52300710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc3fcfe4073237dc073db2fb359dd104be6bc2f14e1d7ad58f7365112d98312c. 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/CA5KR2324096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3a90009a75322fe65fb500edd84a070a99bfb729642d294def781ecb20a2f31. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/FRDKW2311806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4652ff7a64e6606b5ed028a35f90a0264a78cd27a7728b1d0ce52f970aa6c718. 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/NLS762300793.