Zebe is a small town in Togo, located on the north side of the lagoon near Aného. It was the second capital of the German colony of Togoland from 1887, when it replaced Bagid (present day Baguida) unt
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 0x7fe31a090378a30dd282157c2b654caa2b7b6dfaa7e2f2fb404dc06d12dc3ac0. 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/5e3f16ff-ab70-482b-bf86-15cc2dd7a54b.json and https://artists.proofprofile.net/proofs/artist/5e3f16ff-ab70-482b-bf86-15cc2dd7a54b.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 0x1216bcde4e8ef39fcfdbc4399737d3770b98e66ba9ad539f764809d91045a2f7. Chain 2 (Bitcoin): anchored in block 959096 (2026-07-22T03:48:36Z), 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/CZAG81900019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf22e1d2d39faecfea785798d71f8f935aee8ea21fd8370371a8d784cc50d67a8. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T20:44:14Z), 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/CZAG82105001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x897406893b43b81e325f3d15e08a1bb366f8baee269041a873e5216a91007aa3. Chain 2 (Bitcoin): anchored in block 958666 (2026-07-19T05:00:30Z), 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/CZAG82502001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52026b043a6859355ca57a0fb6828cf68749db5923cd9d909581d9502f10039a. Chain 2 (Bitcoin): anchored in block 958585 (2026-07-18T17:05:16Z), 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/CZAG82502002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56689222896e4354d27883d3bf4661eca6c6312d5901436b5f0182b4c60f96f5. 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/CZAG82502003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x897406893b43b81e325f3d15e08a1bb366f8baee269041a873e5216a91007aa3. 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/CZAG82502001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb51abc2e0cdba4b7918f7ec05f0a9cd6a8e21ff546fc610d18c6c0e1257723e. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/CZAG82502004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52026b043a6859355ca57a0fb6828cf68749db5923cd9d909581d9502f10039a. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/CZAG82502002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7317cff993563e89028ea56e0cef9f7da3230baf128cc33cd1dbf373ef7d37d. 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/CZAG82502005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56689222896e4354d27883d3bf4661eca6c6312d5901436b5f0182b4c60f96f5. 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/CZAG82502003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a10a0b134188c65c503d9659888150b9e3b8b08b015525d258b0da9d060c4f2. 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/CZAG82502007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb984e1467ad9551a0dc8287963b18aabd3656de0454c2e3c3420b13db8aef21a. 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/CZAG82502008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d376c225c04b08a797d85968f55f566131f88408faf9c9f787045445acf8c73. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/CZAG82502009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a4a368dda581d31996d0ed6a386179c71facfc8e41cc54fc336721bcdb82def. 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/CZAG82503001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2c38c37a83e27abda95b445d05c06ed9b50416ecf9a5e89f164eef9cbac55ed. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZTB82373300.