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 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 0x2dee8e7949ae2d8cfbde0912d79a97bff6b34e82b908f394472ed57e69d39a65. 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/f66094d1-ebd2-45e6-9d06-421e541dfb1c.json and https://artists.proofprofile.net/proofs/artist/f66094d1-ebd2-45e6-9d06-421e541dfb1c.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 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 0xa290e6e52c2827a145789524cb023bb0fb21fa4b13543afaa95db46c18b53d1a. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/IDA141701301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb278e1cf69556481373a3dd0854b43484671f9a3b57446a43097e910f13e546. 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/IDA141701304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e8e55ad8437878cdd9504b728a6d0291c7339cfcb5e767d45f5665651e4b702. 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/IDA141701305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c865619afc311f494346574f9378840b6e2224a30a5dc07fcc423b1dfaedfeb. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/IDA141701286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x889b8e1bbf85d8dcc8db85c0e93d252231c8a590b8e62405cb1c4b9d2ab1067b. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/IDA141701292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60691d992b071fca5bf252923af64f0a09bfb8230b9a6babeb17c9af297b8e41. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T21:23:21Z), 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/IDA141701293.
Mujizat Masih Ada, Vol. 8 (Live Recording Praise & Worship)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72e5b37f2f425a088328e1e924c9679b8e709ee0c969194e204f2a0aed1e029c. Chain 2 (Bitcoin): anchored in block 957642 (2026-07-12T02:46:48Z), 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/IDA141402109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15275b3f1358ba2ba3ade701c9ce6b6543481ce0cffeed54017977ab84e360b4. Chain 2 (Bitcoin): anchored in block 957774 (2026-07-12T23:51:20Z), 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/IDA141401830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a776c81eaed765dc9bc477511fb90d9f3a9c9bccdae8dc7451466f8f915f2a5. Chain 2 (Bitcoin): anchored in block 958106 (2026-07-15T05:35:13Z), 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/IDA141401831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67f3abe417b82f4b5ac8e4fe169d870e83d160170d867e9669e04ee3b46aa93b. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/IDA141401835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ada7245c66b4afb7a51d7ccfa66ac695ce89aa18ec8f94896ecd94d5dcd98e9. 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/IDA141401837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f372310ca35e4830a80038230e1cc55c71dbe2b90d406ff31d21493b1d4f7b8. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/IDA141401838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8ad8fbd3496e15090ce905b309dc77b22bf0b45c28947816769ecef38cf9eef. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), 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/IDA141401840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2f9ea11a5b1a4ecc9485e2688455406e7c3ed9571292e122a0859078729fde9. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/IDA141401841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb89db82bb447bb3488d4b5730a98c71d62942fa3f237751da8ffaae34d46ff0. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/IDA141701308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11d955b41d75740e6eb7b8f98a81ecb04f425ac0ae9ffc6e8102081ad1fbfb88. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/IDA141701309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45b514c5fb6be30fdc0177d6bba79bf43c57286607c9e26ae4da5f90c3516964. Chain 2 (Bitcoin): anchored in block 957638 (2026-07-12T01:56:41Z), 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/IDA141701310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf20dccea0aa7211e8d9992558b79087da8d61fca12b198833c05f8a47765f221. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T07:27:09Z), 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/IDA141701311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3521cfd297f7e57bb6ed31630326997c6aef764124acb560cdef7bfe13a3d893. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/IDA141701312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe74afc24542df6f1e95a0879f46f27fd57f48742c93704f63860b92179715e34. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T01:09:53Z), 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/IDA141701313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bf9bcdb101e3337f5cbdd1bae9ecf3297efacc3bb0605c17b172272c95ea151. 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/IDA141701316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfd3ae986bb556a2fa465bd0a199c3bf85fe0493ca63daa52069fd2a082a8cec. 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/IDA141701318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e739054df0bbfe0999b4ced640b3b6ee02e9880c23b774eec6270f86030b8d3. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/IDA141701321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x069c90004979d57189ea779c10cec09eca1508a8f8eea976c022f01759817037. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/IDA141701322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cb9f2422573f5a85088ed92fd841e67f92be83299734db26ae57c395be34814. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/IDA141701324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26b4f83004071be508ace291f29690ae5e6bbe2edee304caaf8fae8ce5222b2f. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/IDA141701325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e8e29b46e3a9bb8f0936e52baea41c616a83a06c31ec6cacf22d2b96e1d70b1. Chain 2 (Bitcoin): anchored in block 959080 (2026-07-22T00:07:05Z), 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/IDA141701326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcde02b50bc0bb7a57747a4b4e29a16e240145489936b3833908539d6d2b3a064. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/IDA141701327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90e2705ff39c96be56889d37f08a302eb65391d3883df7cba764e7495778266f. 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/IDA141701328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27f4854184c51924e706669d571bee59ad3db232445b36ea62c87626743980fe. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/IDA141701329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d3278d201ef2b7c70b5ed6ef8854a9bd37e6c81f857757e712b5159dff35627. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/IDA141701331.