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 0x7d3ba834418bd967cb221274e06e949f9f762a6732ac519e072e1c4cd98649c1. 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/5b16d61d-1a0a-484f-8430-ce70329cf4d2.json and https://artists.proofprofile.net/proofs/artist/5b16d61d-1a0a-484f-8430-ce70329cf4d2.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 0x93e27968c9ae60715b9aa9c6215dfde753792bdac8205b8dfd4d746bff1d5861. 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/DEBL61261294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e8b6a25704bb2acf2afc1aef6792c37debb388f34f94fe2ac5590dc6ba1ab17. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T09:57:39Z), 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/DEBL61261296.
Drax Ltd. II - Amphetamine (The Complete Remixes and Versions 1994-2012)
Silent Breed - Sync in (The Best of Silent Breed)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6261224901f3b497039c916c6712d5607c7ef36bcc72206350e63beb01cbb911. Chain 2 (Bitcoin): anchored in block 958819 (2026-07-20T06:39:22Z), 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/DEBL61261789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50233b9372cb44ad856aa0db6d21ff32555905548b2cee465816e6364e1fd4f0. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/DEBL61261790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd04735941728fc99190ab5312d278a546853ff4410eb58750e522348c8f940f8. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/DEBL61261801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbea201ea18a54cc2d220a1f798dc87f95ec8bbb3ef1716728743fb1d56e278c9. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:35:43Z), 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/DEBL61261803.
Electro Nation - Robots and Electric Toys
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x870a0c9a3274882723627af41561c25db302dd831f413dc5cfbdaee479d5096e. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/DEBL60517389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6007a09d56dade166ac20477a6322be58c0d6f74acefc2d37b37896b8668bc3e. Chain 2 (Bitcoin): anchored in block 958736 (2026-07-19T15:46:43Z), 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/DEBL60517059.
Thomas P. Heckmann 25th Anniversary Remixes, Pt. 2
Thomas P. Heckmann 25th Anniversary Remixes, Pt. 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf50045fa797d18a8d27e2a208764b0092fc3529f40ffe09fc17a213480b11cf. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:36:11Z), 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/DEW641700010.
Afultd.76 - Revisited (Heckmann & Henze)
Thomas P. Heckmann & WJ Henze - Boys & Toys 1998 - 2005 (2023 Remastered)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa94111d1a3bc186eff17f10bd656e5616c7e1467021254a927649a226718922e. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/NLCK42232912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45b4ada0c0b7861a43670e3772a19aa5a96a36e2580a5c2af0760a0d74e8660f. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/NLCK42232913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50d11a26de2910e53d135fbe3131954fdeebedabc0b34d5060533ce525fe3fe8. 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/NLCK42232916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc22383e584dcc5f47d717454e349286ab4251168f4fe9b97a17fdcd03d94a4a. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/NLCK42232919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23b18edaf8cceff58e3c082a6e5856656df1bf820ed179ef15d59b7ca8a0c0de. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/NLCK42232930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6dbe5bb21f2c6540a6401a9b316fa3be285a59f15ede9a682341a6565515ada. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/NLCK42232911.
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 0x6fb1df230f8f93dc4f90eca603c67975bcc208ed68ed3ab5b692d37da57830fb. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/NLCK42232914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42b5a1193121c5eeb42857bd3621c386adcab0fdeece788f342ec4af2b98b52c. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/NLCK42232915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1e2be4d425b8f35cc7bfd3f7bf768317292f1a256622da63dc723fd4721bbad. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/NLCK42232917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2dee57d55bf9d32be5baf8ad5bc9030040106e8caeb625b42041c73378bfe3a. Chain 2 (Bitcoin): anchored in block 960288 (2026-07-30T17:41:38Z), 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/NLCK42232920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d979c1dee405ecb86ad3de1f6f34425c27123c5ce1a3e423f421ba0d402f88c. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/NLCK42232921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b289cfae4586bf284d7ce265e4dbdbc028f2d892213a8ff0cb1763cd98f0d74. Chain 2 (Bitcoin): anchored in block 960309 (2026-07-30T20:35:49Z), 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/NLCK42232924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd99f21af3529d06ae62ee13669033c35642b7ad3014f205309117171eba92e97. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/NLCK42232925.
Life Is 2 Short - Thomas P. Heckmann Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabd7cc8b6aebbab9cfd9ab6a6084ee2ce6eebd97f43d17c72820b748e7bf0c9e. Chain 2 (Bitcoin): anchored in block 957026 (2026-07-07T11:02:43Z), 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/DEAF71252761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb9738c256c48a8068de41d65799a46dcaa1973b78ba481b77eeed74767a9a1d. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/DEA450904540.