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 0x98df86955e35c87e2c1fd1d5563b625522353abeaf206cbf39253778b8f34762. 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/f197fa65-44ca-4520-a86f-333d678cb038.json and https://artists.proofprofile.net/proofs/artist/f197fa65-44ca-4520-a86f-333d678cb038.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 0x3cf71233543eb1e516a7e8fa0a3a8d0804865b41eac4268caf003a306eabae5d. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:41:14Z), 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/USL4Q2089547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeed2dcea7398646c72e4a3ed2bf5e346747e1c9144aedf69b6e19b787281f90. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:44:41Z), 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/ATR981220854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa21af98452b9a7d45b68f43abbe50f1c663b478fba1e3f87a830c20c9c4235c9. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T16:00:15Z), 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/USHM82137484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd080582c89c63cfcfa26f84901bd341afcb52a52e3990bbcbabd80e9af0c0274. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:16:27Z), 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/USHM92123536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d26e51e82bbcf024b69415bd07c5ce350a456356cf5c6c51bc17effea5327ac. 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/USHM92123538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0997e6b740ea408654ad6a5fa3a3c08974d0327c27950959f5550d223c07cc90. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:19:56Z), 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/QMDA72158854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0dd8806989a9a2a6ad5df9a0834d964605f57a534bba3d6de15d3e5ee0b0f2c. 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/ATR981255385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2f6a1deaab30aad1bcd0e7151240c3d9c28dcafe3f6539092068a1f8273c9bb. 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/ATR981255389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa730f954c672d68fccb67e143687a87a909c18c58011f09dc2775604e86ee892. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/USHM92214516.
PEOPLES CLUB OF NIGERIA INT'L HOUSTON BRANCH, USA 1st International Branch Outside Nigeria
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1446c177393d30f71d595befd58d2de5852b7c0919ad581988aba1f86ffe772. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-16T00:11:39Z), 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/QMFME2336379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74e5d77716e2132d85a6dd5d7a00f08705ed226ac636cbada78d0166ac755148. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/QZNC62319606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6246f654766aa81c4faba6b4172e63d1bf1674b96176d9727d206682150d8daa. 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/NGA602300714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c865ece6d8a849b5c266e2a2ad2c8b8a426bcacd9080d7d32e8b05bdb026e44. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/NGA602300715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb442360deb93e9edcbb6de56ff781237a31235fde49ba57f824f933b3bb8dac8. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/NGA602300717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x175b87622332812773aac780e7bd6ddcdffbce269951a4b779be43d3ec49df11. Chain 2 (Bitcoin): anchored in block 957653 (2026-07-12T04:35:02Z), 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/QZNC62419387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f9f034a88fb20ee7700870090c0fdcda7dfb44a753237e61a7fec169ea701df. Chain 2 (Bitcoin): anchored in block 957650 (2026-07-12T04:18:57Z), 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/QZNC62419388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb79f92e8b91f3755b8685d9ac45cf4706d3fbbda6f76b5ba416a73570240c571. 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/NGB972400026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4dae3185708fb20bc829a2563ca683682c4e86fd28682fa777a35828ed010c2. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/NGB972500154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x672cd36cec6c673df67dda55771e04a92ce2148751742b4df3dec578113271a4. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/NGA602500175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x087e72582582a2909db60e4f73e8c8e15d162425cbc5be358a92ba69f62aa684. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/USL4Q2563808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb35b7a990e329a455492a1e4fb79aa984a2171730220c30104562d4b43bdee0d. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QMFME2201652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdefee83bae27be0eb7e3dfec7868e60f8efa969114a5fee1ea1145b2d202018e. 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/QMFME2201669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9f9ad3bd151920544af6909026360d3153cd6e8219d861972d41311ec3915b9. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QMFME2201703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x560e08c65b452be0a2dcc5ab2cb7d6179f8487c97210c690a45eee757d3236be. 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/QMFME2201733.