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 0x8b852b486d6757a9770b81cf0ba02dc11f549adee492566af3f3c4fbf9736b06. Chain 2 (Bitcoin): anchored in block 954553 (2026-06-20T11:51:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/abe06284-3e82-4c99-9516-8836aa78eaa0.json and https://artists.proofprofile.net/proofs/artist/abe06284-3e82-4c99-9516-8836aa78eaa0.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 → block OTSBitcoinBlock must exist at that height 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 0x9b4f07543e8b554e9ce6ff1af231672c3799743ba58109ef84f0fac404bafc1c. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZK6H2552878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x868f017f0623aa14831a3290e989e2c8794dc16b01cd0ac98226cf3319f6af41. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/QZK6H2552882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf209ebfb3911c24eaa994bcd9862e7d5ef9516b39d1ca0423d2e05e61ab7b8bc. 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/QZK6H2552884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8eae3d86468f923af34360cdc8ca60218aed673ee0fe2d7e08f2a3584d80c27a. 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/QZK6H2552885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x983a7c405cc6ec14cc5bcda8ffe3597c2cbb69a4019dd8b1b22d16cd48bf99d5. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/QZK6H2552886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa2f67d9c0f351237af33901f82e1c62014119bf29f85046868c43a392e20815. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QZK6H2552887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x142b21fb651a5b665cd4ef1b6dbe7bead298b98b8f4e5617f446e5b1a867bc2f. Chain 2 (Bitcoin): anchored in block 958558 (2026-07-18T13:44:16Z), 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/QZK6H2552888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7eb725406128161c65d38c5951bb3f05d9c0e4ef7929a6d13bbfcbd0f56fb07d. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZK6H2552889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08faad6a2601a46bd90167f6501bb879835a9d75899ed18db1ff40ac974e57df. 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/QZK6H2552890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34b4d16f1aae9fb4ebbfda40bf6008d56c6c9ed242843103ffe0fb6a15b34777. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/QZK6H2552891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3869f7be6ca32f006e675f0a26c007f74ee959aa3a912ebd94be12978008b7b9. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZK6H2552892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8874741564107c36c16b8dcb059439fe565a50d0a5546e54e0478149d78f88c5. Chain 2 (Bitcoin): anchored in block 956748 (2026-07-05T05:55:59Z), 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/QZK6H2552893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf009f1f72cca1ee816d399a4be2c0404673388b7043ba33e63b5bb38c1e5b234. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZK6H2552894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcbf9f719dcddcad1765e227732229c5a839f5cd83829a5c61ee2a71ab6f9856. 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/QZK6H2552895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e77880c8ae8aa9fd99549e90f17f1f8402916ac147c41509a68ff989aef916e. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZK6H2552896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05e145fba32fbb3bda31afc5c894530f3c301c0f72a4955e73b7f7e9f8d4acd0. 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/QZK6H2552897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa00dd168e088aea207ba6f211ad4e0f69354ba7ae9ba1461cef3bf483b72ec0a. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZK6H2552898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7fc6c058c023b9703cc8ffa6c47d2c975ed2581c9eeec982d1f51673e345d87. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/QZK6H2552899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcefafc1aef816905989d1a662f4ce9ce92a2c2c6f3a2e0fedbb6bcef61582447. 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/QZK6H2552901.