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 0xca6e09b65aa9c2d8b961a9f06020c00d8857ad37da97beaed7ea66e0be1b051b. 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/e6121941-32bd-413a-9dde-5b34f5d7779d.json and https://artists.proofprofile.net/proofs/artist/e6121941-32bd-413a-9dde-5b34f5d7779d.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 0xbb1a78429aee909f411466dbfe7d7b979f505086a8bfeb782bc5deeacb3b4388. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T23:03:28Z), 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/US25T0411023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9afd6cb7f67b2bde2ac89ef71969e7efbbdb86921e9fb0046039ab92ec6e8ec5. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/US25T0411025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b406193fcd70458b8199dc84bc756a85d921576dd268c58654b01ee03d09e0e. 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/US25T0411026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cd791d43ff76a5128b1591b7412fa571b849b6e5a9e2db002db8e4e1d03fd50. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/US25T0411027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd638a8448a54b3287f498c6aafd2c9a1b5b5d4537319f0dec2099447cb2fe8ba. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/TCABR1342325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb26f75f0b8a5060e2496bc5ba80e221163a11d59078a43185672d00411da7b06. Chain 2 (Bitcoin): anchored in block 958104 (2026-07-15T05:34:05Z), 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/TCABR1342370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f9aa8619988efbf1cf4c6789993253470bac8d8998be02998c00b6ad1d97222. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T11:11:06Z), 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/TCABR1342371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x959b37435734795c6227ca26c00b7c7ed298ef993a7576477fe27b273fe1277f. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/TCABI1236056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96b3b47cd2368a8edbeb9094d01f2d7d08040df12e9f5b878fa112a710409160. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:02:49Z), 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/TCABI1236059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d72b5763eb1fc5e6fe074ffe040f31db879cbd5d3f4558f39e4285f5c6eefd7. Chain 2 (Bitcoin): anchored in block 958531 (2026-07-18T09:39:18Z), 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/TCADZ1891154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90775220ad8c945be24c73112b54e4a8b97f4d5e40229aafa78759c32c6f5adb. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/TCADZ1891281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ac81a6948e715eb4e81fb2697be39e4cb92d2ed1e9373e5bc62660d866cf4e3. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:21:37Z), 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/QZTBA2443900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd339c33fbd4cf22e0d3e4696c6ed8b9bf39c7fedf63061e9707bacfaa8e57d71. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/QZK6F2437876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1f8abdb9fef0ede69c27b6bbb4b47754a80ba0242b235637e3dfb0ed2c4e59d. 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/QZRP52408751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00235da65e0bfc4d7c1de353ae3ea14fd0e03eebb9e0a98f535c5dacb08fc2d9. 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/QZNWY2482366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6f249d01823afa820dbf0bff4abbf906d3e2cf171ffaac1ff482ca85f833dfc. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/QZRP52408753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba488db5a82f27aa60b6f7196dd19b739816012a75f6b41022d851b7b7ff2f09. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/QZRP52408754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe965305abb4222f5314e022a33c74057905aa75dedf5c8219495adb5082298a0. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZRP52408757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe965305abb4222f5314e022a33c74057905aa75dedf5c8219495adb5082298a0. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T16:33:12Z), 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/QZRP52408757.
I Forgot to Say (Andrew Kubiszewski "Floating Arpeggiator Remix")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x033610648c6377401d012fa33155d25c349bbbbb8848e2f64948702ba7c20be8. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:25:50Z), 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/QZES72582338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x553eb2750b6dde0ba60eba88bb5f3bd966c627a4df1655761d0370cd1c5ecd50. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QZK6J2593780.