1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xfe53052521840f28b410a701af51ab797bdf71f53bfe47789e4d906e59965180. 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/381c1d95-1acf-4b10-a684-2fd214745d1d.json and https://artists.proofprofile.net/proofs/artist/381c1d95-1acf-4b10-a684-2fd214745d1d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0x7c6a665a9a60c9dfc5a8eaeb23e5b7eeb9ca6db42fd76f6164c1b2ded9f59365","isrc":"USI4R0508213","name":"Beautiful Head","registered_at":"2026-06-28T20:22:37Z","spotify_id":"5qjxbESLSYtV20JKeiwsaZ","type":"track"}
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c6a665a9a60c9dfc5a8eaeb23e5b7eeb9ca6db42fd76f6164c1b2ded9f59365. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5qjxbESLSYtV20JKeiwsaZ.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5qjxbESLSYtV20JKeiwsaZ.
Sad Songs for Dirty Lovers (2021 Remaster)
A Reasonable Man (I Don't Mind) - 2021 Remaster
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c273a2da45d0eca151c5715a16eae042c2e2840ced0f7f50ff6c3e6b35c9797. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1z5E84ZZQP5o0k00oqpt13.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1z5E84ZZQP5o0k00oqpt13.
Anyone's Ghost - Live at Brooklyn Academy of Music
England - Live at Brooklyn Academy of Music
Think You Can Wait (From the Film Win Win)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39f564bebb4969163330f753d50b12c40d5db0a0fdea1cb1140012a06414acd9. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/50M7nY1oQuNHecs0ahWAtI.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/50M7nY1oQuNHecs0ahWAtI.
The System Only Dreams in Total Darkness
Carin at the Liquor Store - Recorded at Spotify Studios NYC
Maybe Not - Recorded at Spotify Studios NYC
Carin At the Liquor Store - Recorded at Spotify Studios NYC
Mistaken for Strangers - Live in Brussels
Mistaken for Strangers (Live in Brussels)
Juicy Sonic Magic, Live in Berkeley, September 24-25, 2018
Nobody Else Will Be There - Live at Berkeley 9/24/18
The System Only Dreams in Total Darkness - Live at Berkeley 9/25/18
The System Only Dreams in Total Darkness - Live at Berkeley 9/24/18
Don't Swallow the Cap - Live at Berkeley 9/24/18
I Should Live in Salt - Live at Berkeley 9/25/18
Bloodbuzz Ohio - Live at Berkeley 9/24/18
Don't Swallow the Cap - Live at Berkeley 9/25/18
I Need My Girl - Live at Berkeley 9/24/18
Afraid of Everyone - Live at Berkeley 9/25/18
I Need My Girl - Live at Berkeley 9/25/18
This Is the Last Time - Live at Berkeley 9/25/18
I'll Still Destroy You - Live at Berkeley 9/24/18
Apartment Story - Live at Berkeley 9/25/18
Dark Side of the Gym - Live at Berkeley 9/24/18
Carin at the Liquor Store - Live at Berkeley 9/24/18
Terrible Love - Live at Berkeley 9/24/18
Terrible Love - Live at Berkeley 9/25/18
Vanderlyle Crybaby Geeks - Live at Berkeley 9/24/18
Vanderlyle Crybaby Geeks - Live at Berkeley 9/25/18
Juicy Sonic Magic (Live in Berkeley September 24-25 2018)
This is the Last Time - Live at Berkeley 9/25/18
Somebody Desperate (From ''Cyrano'' Soundtrack)
Somebody Desperate - From ''Cyrano'' Soundtrack
Eucalyptus [Live from Bearsville Theater (Woodstock, NY)]
Eucalyptus - Live from Bearsville Theater (Woodstock, NY)
Your Mind Is Not Your Friend (feat. Phoebe Bridgers)
Once Upon A Poolside (feat. Sufjan Stevens)
This Isn't Helping (feat. Phoebe Bridgers)
The Geese of Beverly Road - Live in Rome
The System Only Dreams in Total Darkness - Live in Rome
{"copyright_id":"0xa653185813325ffc78979ccafdd49d624a3036e1d63f61b19f342069fd8df65b","isrc":"USUG12004711","name":"coney island (feat. The National)","registered_at":"2026-06-01T13:07:58Z","spotify_id":"2awNGIJHodfLZSClB3PYhz","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa653185813325ffc78979ccafdd49d624a3036e1d63f61b19f342069fd8df65b. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2awNGIJHodfLZSClB3PYhz.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2awNGIJHodfLZSClB3PYhz.
{"copyright_id":"0xa653185813325ffc78979ccafdd49d624a3036e1d63f61b19f342069fd8df65b","isrc":"USUG12004711","name":"coney island (feat. The National)","registered_at":"2026-06-01T13:07:57Z","spotify_id":"3k7ne7VmH43ZPWxPdvPUgR","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa653185813325ffc78979ccafdd49d624a3036e1d63f61b19f342069fd8df65b. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3k7ne7VmH43ZPWxPdvPUgR.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3k7ne7VmH43ZPWxPdvPUgR.
Cyrano (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0732f6fcf5ba763e95d09e9a446584d8603783c383b9d70e959b4c77474b0471. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5gLrqtsegFeZWk6Kz2Tyrh.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5gLrqtsegFeZWk6Kz2Tyrh.
Melancholic Mood - The Best Music for Gloomy Days
Sea of Love (with The National) [From “Norah Jones is Playing Along” Podcast]
{"copyright_id":"0x5bfebf478fecbaf0b4c834bb581000990115b0503f0f84019348d99920a4f85d","isrc":"USUM72314485","name":"Sea of Love (with The National) [From “Norah Jones is Playing Along” Podcast]","registered_at":"2026-06-07T17:34:36Z","spotify_id":"2SUfpiTVAMqC4HEdTn1PPf","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bfebf478fecbaf0b4c834bb581000990115b0503f0f84019348d99920a4f85d. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2SUfpiTVAMqC4HEdTn1PPf.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2SUfpiTVAMqC4HEdTn1PPf.
Transpecos (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb08187965574e0502ba7c2e11cb8febda9fa3eb8b3d873d2dbdb0cc498808fb. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1rO59tHk7tTjQpopWkyINc.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1rO59tHk7tTjQpopWkyINc.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf317ec624809643b0acc4480c4173fcb17ed479297f3a4cc56efae02fb47f981. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1QmRBOWMG94T22o03yM83V.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1QmRBOWMG94T22o03yM83V.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa503ab35c6583511bdd5e528b543c45b4101d270be73a0bbdfca016402c88a0. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6NtvVEj7A14Fwz3uM1GCYF.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6NtvVEj7A14Fwz3uM1GCYF.
Man Up (Original Motion Picture Soundtrack)
For The Throne (Music Inspired by the HBO Series Game of Thrones)
{"copyright_id":"0xdbf4637fde7d88c1b6b2a518f4dabfe792b6f1fcbccab45d237aefad825737fd","isrc":"GBAFL1900247","name":"Turn on Me","registered_at":"2026-06-08T19:34:23Z","spotify_id":"6AAzhv94mLlozzO1oyrUnl","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbf4637fde7d88c1b6b2a518f4dabfe792b6f1fcbccab45d237aefad825737fd. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6AAzhv94mLlozzO1oyrUnl.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6AAzhv94mLlozzO1oyrUnl.
Everyone's Getting Involved: A Tribute to Talking Heads' Stop Making Sense
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52f41e5abe11acb71841f2f05966d0f6aac3a8b92f8064a9e153bfd083b5c63c. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/05qtwPQBmi0NI5DDEoWEUw.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/05qtwPQBmi0NI5DDEoWEUw.
Lean - From “The Hunger Games: Catching Fire” Soundtrack
{"copyright_id":"0x83f0e52d4370faa4ad62f01ce1954c1c6282e8d7800b0541f3d1778a6bda9f05","isrc":"GBAFL1300196","name":"Lean - From “The Hunger Games: Catching Fire” Soundtrack","registered_at":"2026-06-19T03:53:57Z","spotify_id":"1FR41Q444KNxkyAV7AVPca","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83f0e52d4370faa4ad62f01ce1954c1c6282e8d7800b0541f3d1778a6bda9f05. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1FR41Q444KNxkyAV7AVPca.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1FR41Q444KNxkyAV7AVPca.
{"copyright_id":"0xa653185813325ffc78979ccafdd49d624a3036e1d63f61b19f342069fd8df65b","isrc":"USUG12004711","name":"coney island (feat. The National)","registered_at":"2026-06-01T13:07:57Z","spotify_id":"1ofQwiozMPRwf5g9MIjaHx","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa653185813325ffc78979ccafdd49d624a3036e1d63f61b19f342069fd8df65b. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1ofQwiozMPRwf5g9MIjaHx.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1ofQwiozMPRwf5g9MIjaHx.
Grey's Anatomy (Original Soundtrack Volume 4)
Dark Was The Night (Red Hot Compilation)
{"copyright_id":"0x9c5ad5cdb15c2d8dcf331d2273eb7a7a8ee36af60725073fb9f753cbfd24d834","isrc":"GBAFL0800174","name":"So Far Around the Bend","registered_at":"2026-06-08T10:47:57Z","spotify_id":"3VBgeexCnoYt5u1iGW7lSf","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c5ad5cdb15c2d8dcf331d2273eb7a7a8ee36af60725073fb9f753cbfd24d834. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3VBgeexCnoYt5u1iGW7lSf.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3VBgeexCnoYt5u1iGW7lSf.
Ciao My Shining Star - The Songs of Mark Mulcahy
{"copyright_id":"0xc38de1b81ab4848f55908c4ab3d7e076de4ccad0e063b6855bc65385f224a3dd","isrc":"USCGH1773822","name":"Ashamed of the Story I Told","registered_at":"2026-06-21T04:17:14Z","spotify_id":"5cPMh36BInWox3ZD5vU5YP","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc38de1b81ab4848f55908c4ab3d7e076de4ccad0e063b6855bc65385f224a3dd. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5cPMh36BInWox3ZD5vU5YP.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5cPMh36BInWox3ZD5vU5YP.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ce537bca13f77f6317d72251ac316fd613ca3807f01919a5897a90f0c17d7c6. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/01BmFRqkC0WKUxE9paParE.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/01BmFRqkC0WKUxE9paParE.