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 0x7590a24087d04e3e09824bb2c1ebbd7669b3df644428083f4a12abaea415e206. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/494c319f-3b74-48a5-9b24-bd9095243e2d.json and https://artists.proofprofile.net/proofs/artist/494c319f-3b74-48a5-9b24-bd9095243e2d.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 0xb40f1895c6e993952dd2ef28a41eb479333098d6a740021540c518aac3290728. 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/QZHNA1990084.
You Just Can't Stop It and You Might Not Get It
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28cb85d96f3141b9aceaa910da197a733f9d80108d8fd1bacf1025c2f86d0919. 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/QZHNA1990085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0f2964c49b18532c7977b2c444d47fffe6cec6de3150543da437fcbdf7ed634. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T02:16:42Z), 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/QZHNA1990086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e0f970069fa1a96fee686cc7ba322e1641ee960ee73874f400abb4d91df438c. Chain 2 (Bitcoin): anchored in block 958658 (2026-07-19T04:09:09Z), 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/QZHNA1990087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d7a43d9c612c42f1b546b5b06acd78ade3d435f9540a21ed2a5ca2b8db388ab. Chain 2 (Bitcoin): anchored in block 958662 (2026-07-19T04:43:15Z), 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/QZHNA1990088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a993ba727fc90cbad075523724c2c39a7bbc0b4fc9879f733254981e0ed9db5. 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/QZHNA1990089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2526dcfdf04f2a3f0e8f989237b4d9099b80c9366cbf1d8b8cbf9ef11a284743. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZHNA1990090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82cdaf57bf952b0540cf6cb6789577f17a3b762d532abf00681415b909661f27. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZHNA1990092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23b7ede3fda757f73192bf52b5ee7bdcf95e2971998913926cc792968aa953df. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZHNA1990095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf41b2ed9a767c817acd12ccf080c7dc95bd5f7d2e341c52f6ef8daeb22047af4. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T19:09:25Z), 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/QZHNA1990098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83a893cc84f6286572e2bc7f209133d9929992c7a347efbf5a6ae7ce967b8777. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T20:03:26Z), 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/QZHNA1990103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47f1b16c5ed1b4fa58cd15dad0e353eb118b66e32cda0a7c377a720fbd713c4a. 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/QZHNB1903392.
A Tiny Little Room in the Shape of a Burning Credit Card
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe7f68b1cb64ad027a56f6d20ae3d0ca69c941dcac550e081086a6e19df95bc0. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZHNB1903395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94feb67bd7681b5ff76f627466110ae8ae00419fcc3a9dab29bc7b72e054d798. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZHNB1903396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a68001535506f6a89cef56a3c48fc632aff7b84ed1841d681116e6436ac0127. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/QZHNB1903399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd95b6639b0e3f60731065eb02967d2a16b84c96b2adec5f1bd063ece285263b7. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T08:06:49Z), 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/QZFYW2169418.
What's Inside Your Mind? (First Sequence) [feat. Mephisto Waltz & Diet Tea Other Cola]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23fb2d8f1a5d0fc5565533e8ea3516531b56e844ac68d749545e9b2e16a219b4. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZMEP2003930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7965d642553af6f5e759e1f8cce32bcbf11ff5197504d8d28e1cdbbf43637abe. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/QZMEP2003933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x818b41f1fc5930de42facc3f081c2829fa7b47ad39c447c782c3a2ec312c187c. 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/QZMEP2003936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc480b25c9445b18e25c3a5be6007c028d29cc48dec097e8aee08204145646dea. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:03:00Z), 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/QZK6G2171588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c06d4589067cbb06f2f795a60e5abf3ad74e74cc00c69123aa461526e91e0b0. Chain 2 (Bitcoin): anchored in block 957591 (2026-07-11T17:21:30Z), 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/QZRP52195268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c4e14eb2cb737b29f981d3d19471d4fb79bc75df2a9e0c544b3b2956fa25950. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZFZ32271150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c406e6b7aed2b50b1ec5692c41e921f2da2176ba956192a7f96227f36cee212. 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/QZFZ32271151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3808d93b7036c3139668ba8ee4f3c669b92065ba44ab0e03d6e02a74122106c8. 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/QZK6P2232512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8e7c0a5166527dc9e5c9c9ec0e651970672c8fcf14ec666b8847a3d66a4be27. Chain 2 (Bitcoin): anchored in block 958476 (2026-07-18T01:26:56Z), 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/QZNWW2252999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa52d008c66cde18a88d833d5a526e6ecc6f2cdf23eb329ecbc569c33b65f3b8e. 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/QZNWW2253001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0043305440f80ee0d74bd9faa3dbf8c72412eec1b2151c1f0369d913b0cfbfd. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QZNWW2253002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62356d55b22ebf787e765518b7a27d159ab7bfedc285b1b634c3f91a36a8d209. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T12:03:04Z), 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/QZNWW2253005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbeaf9b4921ce12555cafc1efae53be327530a794c9f7bce40b16ed067345691b. 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/QZNWW2253006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x661b341c7b1ca774e7a50144fe1971c1401827dbe8fa836ab09a6a107bb892e8. Chain 2 (Bitcoin): anchored in block 958682 (2026-07-19T06:17:12Z), 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/QZHNB2467568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6138cba28951b26882591fab48b40b7d0632cfb50adc4e1b52445aa0d8ace0a0. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/QZZ772435912.