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 0x449a886f22440210c58a87617f3a92f230f78f0678ac069ba0fdf67e1a5ae7e2. 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/a43cbfd5-593d-4b21-a973-13dbd0f308dc.json and https://artists.proofprofile.net/proofs/artist/a43cbfd5-593d-4b21-a973-13dbd0f308dc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Papa Was a Rolling Stone (feat. Demi Lovato)
{"copyright_id":"0x8d849771fdd9ada4c18cd2a043e02f411e97c17cd2aa25e4bd29a5e7d593179a","isrc":"QZWH32400011","name":"Papa Was a Rolling Stone (feat. Demi Lovato)","registered_at":"2026-06-25T06:40:39Z","spotify_id":"2BryznQ9VHUExjOZdJEgNU","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 0x8d849771fdd9ada4c18cd2a043e02f411e97c17cd2aa25e4bd29a5e7d593179a. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2BryznQ9VHUExjOZdJEgNU.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/2BryznQ9VHUExjOZdJEgNU.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bd3f1880a35417aabc9b34d50c915cb69b64d3195e2368af5b85d50544e5b1e. 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/0GnU2sNVI6uP1tlmkVfiEt.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/0GnU2sNVI6uP1tlmkVfiEt.
Maybe It’s Time (feat. Corey Taylor, Joe Elliott, Brantley Gilbert, Ivan Moody, Slash, AWOLNATION, Tommy Vext)
{"copyright_id":"0x56b07ed30a50b3a7a459979b55851a31e38ad6ded2ba19df89200e19c483cf03","isrc":"USDPK2000120","name":"Maybe It’s Time (feat. Corey Taylor, Joe Elliott, Brantley Gilbert, Ivan Moody, Slash, AWOLNATION, Tommy Vext)","registered_at":"2026-06-04T07:56:24Z","spotify_id":"1rptK1oec3gjHpzzrxHyln","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56b07ed30a50b3a7a459979b55851a31e38ad6ded2ba19df89200e19c483cf03. 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/1rptK1oec3gjHpzzrxHyln.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/1rptK1oec3gjHpzzrxHyln.
Sorry Not Sorry (with Slash) - Rock Version
{"copyright_id":"0xebafd44bc48a5e92f0bb2cca4eab195ba21a92292c528892852bc52ab29ffa36","isrc":"USUG12303420","name":"Sorry Not Sorry (with Slash) - Rock Version","registered_at":"2026-06-04T10:29:52Z","spotify_id":"3L3IJAp60VshAFFDjdJ2FE","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebafd44bc48a5e92f0bb2cca4eab195ba21a92292c528892852bc52ab29ffa36. 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/3L3IJAp60VshAFFDjdJ2FE.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/3L3IJAp60VshAFFDjdJ2FE.
{"copyright_id":"0x5d5e9d81c88d15d6c00f6ac9f7d31b89ad068bdbf7a3a6fc86f90a5d7addedd4","isrc":"USUG11500823","name":"School's Out/Another Brick In The Wall","registered_at":"2026-06-05T12:24:18Z","spotify_id":"4EZNEXB4UXjJsMny5lxtl4","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d5e9d81c88d15d6c00f6ac9f7d31b89ad068bdbf7a3a6fc86f90a5d7addedd4. 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/4EZNEXB4UXjJsMny5lxtl4.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/4EZNEXB4UXjJsMny5lxtl4.
{"copyright_id":"0xebafd44bc48a5e92f0bb2cca4eab195ba21a92292c528892852bc52ab29ffa36","isrc":"USUG12303420","name":"Sorry Not Sorry (with Slash) - Rock Version","registered_at":"2026-06-04T10:29:52Z","spotify_id":"0zdovTYimmoOLnRRyvhGke","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebafd44bc48a5e92f0bb2cca4eab195ba21a92292c528892852bc52ab29ffa36. 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/0zdovTYimmoOLnRRyvhGke.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/0zdovTYimmoOLnRRyvhGke.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeccd8583384b59199e2293f847d6d21a73c33c74fe19fe85bcdc8528d733925f. 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/48pyG4Fg15OHEWaV2sOPfu.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/48pyG4Fg15OHEWaV2sOPfu.
Sweet Child O' Mine (made famous by Guns N' Roses)
{"copyright_id":"0x5a7adb927c6e1b7936309ec1e2e1500e759a6f71802c42ba193ba16e316bbaf6","isrc":"USA371001724","name":"Sweet Child O' Mine (made famous by Guns N' Roses)","registered_at":"2026-06-21T04:02:49Z","spotify_id":"1pVpYMKAd6vsrn3MROrGNR","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a7adb927c6e1b7936309ec1e2e1500e759a6f71802c42ba193ba16e316bbaf6. 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/1pVpYMKAd6vsrn3MROrGNR.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/1pVpYMKAd6vsrn3MROrGNR.
Sweet Child o' Mine (Arr. for Harp by Kristan Toczko)
{"copyright_id":"0xc00d016170d057b47e03269930ecb75995f85333ea984c995d648f11cbcf7ee8","isrc":"CA4Q32400001","name":"Sweet Child o' Mine (Arr. for Harp by Kristan Toczko)","registered_at":"2026-06-26T23:02:10Z","spotify_id":"28xJn5FKKelZDBMx21vlcC","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc00d016170d057b47e03269930ecb75995f85333ea984c995d648f11cbcf7ee8. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/28xJn5FKKelZDBMx21vlcC.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/28xJn5FKKelZDBMx21vlcC.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea73b431048cb14028ed85710bb1fd021f94551e72831edde7406b7a2ecab0bf. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7IFcD8U7dTBEqa87PGQVgb.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/7IFcD8U7dTBEqa87PGQVgb.
Welcome to the Nightmare - an All-Star Salute to Alice Cooper
100 Rock Power Tracks from the '70s, '80s & '90s
Give The Drummer Some (Explicit Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92202ae98a2301b3eba9e38a873d02bb09e566b907899a7ba46499c313e89e57. 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/2UO5DHF95T3GIIe776nSsq.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/2UO5DHF95T3GIIe776nSsq.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92202ae98a2301b3eba9e38a873d02bb09e566b907899a7ba46499c313e89e57. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0XFQMBxSF7UaRTVwkWtSEk.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/0XFQMBxSF7UaRTVwkWtSEk.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc82ba4eb5251f932061a0c3f6640dbb39d358279a7fc7ba66cf4ef79844adc12. 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/5rXDTihGQ3TkYE3pmraAmH.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/5rXDTihGQ3TkYE3pmraAmH.