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 0xc8132fe53b1c6741e2aaa8300d761c5ab1d808c29f3ea20ebbcca0ed4db3de88. 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/1f277f6a-d2f6-4992-913e-de70a24c37cf.json and https://artists.proofprofile.net/proofs/artist/1f277f6a-d2f6-4992-913e-de70a24c37cf.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 0xbac9676707b4c292cd20b8a4701c37e2dc08ea0923f44e20ac09a08a6371a4ed. 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/QM6P41400854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x769dcccbfc7307d358c3259270df7273661854600ed978160221703f95af6928. Chain 2 (Bitcoin): anchored in block 958054 (2026-07-14T19:33:24Z), 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/QM6N21408780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b81c5b5d3c5cca698dd9c442a1d863c39c09e5ae4158592a33c3c4a1ad7865c. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/ZAUT81600005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1422f2ee59075da43cbd5087d86e1fc4e14072ed0483b8a8dc4fb5534de3c4f. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/ZAUT81600007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1930a8382b32a9ba73732b49a45abecc9ad2aab50d21ef58c4aaeed0be4b48a. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/ZAUT81600011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba09d6404b5a826d1673cd5b2d2fc82a428f394830e88b9445e7aeeed82ddafa. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T15:07:00Z), 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/ZA5571600005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b9a883aab9f1dc37cbb5130ef3d0683201badf1cf415d4046f839512588b998. 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/ZA5571600007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa7ee0dcb9894fdbbf7ec74090a07f6cdbadd3849b9581543ec47686e4b2df51. Chain 2 (Bitcoin): anchored in block 958992 (2026-07-21T10:12:17Z), 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/ZA5571600009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a268516519272b617aa13536f9b41f54149908cf36707b87484b78f07d5119a. Chain 2 (Bitcoin): anchored in block 959088 (2026-07-22T02:14:33Z), 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/ZA5571600012.
On My Journey (Live at State Theatre Pretoria)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x626c550354fbb70c28862be65b57fdcf43d24d68dd53b43b395697c362f6e39a. 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/ZAUT81800002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5b778c44925c2ab71e7eb139d1c284df1289d6b8af525ea46097d79d8231dd2. Chain 2 (Bitcoin): anchored in block 958653 (2026-07-19T03:54:23Z), 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/ZAUT81800013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x626c550354fbb70c28862be65b57fdcf43d24d68dd53b43b395697c362f6e39a. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/ZAUT81800002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40b95660c326fb6ee8ad4ff319424fcab6e250e9b87b019d79472de75cb64971. 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/ZAUT81800007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x043e56a91a8b737488948add92659678a9947c57f763e583118e32e5d5b56821. 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/ZAUT81800008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5b778c44925c2ab71e7eb139d1c284df1289d6b8af525ea46097d79d8231dd2. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/ZAUT81800013.
Time of God Manifest (Recorded Live At The Carousel, Nickelodeon)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bb2ffbb3352721c4bf42e75b746b5e1278d54b90b7cabc5de8bb8bade6867c4. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/ZAUT82100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93b1d134be30d75175abf44260eb9c666f7433948de8f504dcc51f3c5c569c57. 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/ZAUT82400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93b1d134be30d75175abf44260eb9c666f7433948de8f504dcc51f3c5c569c57. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/ZAUT82400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9969731a2b1cca9ad9fc2d5ef5d34bf944a4a52a41587e34f87c81efd66cf702. 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/ZAUT82400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93ceeaeae5a27c14b00fab0a54dfabb9f778666a7fb59b21b713261d84a823cf. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/ZA5572500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb18d8d2b6cf37f815110f714c46b267adcc1cb12da516f47eba99fb775d4c5ac. 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/ZA5572500002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x311ada59d77e3fee9a7dcfa55f5624859d2ee50bfa73b630af32675db6536b05. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ZAZ1P2100020.