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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf64892e4f75f209c4f0ab01067d418a6747490b075fef8a1b3c6a01f754a5d4. 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/65e81765-3544-4d8a-8d12-dd2bb9dee09d.json and https://artists.proofprofile.net/proofs/artist/65e81765-3544-4d8a-8d12-dd2bb9dee09d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Ante Godana ( Ethiopian Contemporary Music)
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41ee87e6aaed23d8c9f5edacd77b6a2fe19b664b5338afc49ac5b1e4f7c997d3. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USHM91250872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0e16e3bd4bc01392508597fe2e39b0ed6ec9fcdc61e6960fe8718cac7a2b162. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/USHM91250874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd92dc42036936bea346c9293aa1b54e8d663458850b716f59beb771e561f363. 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/USHM91250875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bd4876399448fdfde7778c624a69dd31f3904bc5c1c9115a0b118645be07419. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:55:16Z), 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/USHM91250877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41ee87e6aaed23d8c9f5edacd77b6a2fe19b664b5338afc49ac5b1e4f7c997d3. 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/USHM91250872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0e16e3bd4bc01392508597fe2e39b0ed6ec9fcdc61e6960fe8718cac7a2b162. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T16:28:19Z), 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/USHM91250874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd92dc42036936bea346c9293aa1b54e8d663458850b716f59beb771e561f363. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T16:47:34Z), 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/USHM91250875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bd4876399448fdfde7778c624a69dd31f3904bc5c1c9115a0b118645be07419. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/USHM91250877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebb3e1bc373d4b69ad61d0f79125117f624c49c9480a979c48563365d14ab0ad. 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/USHM91250878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ef01d2d49aa0b914356c96af2285490fdd8ec0d95b03f90ae82549971b809b4. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T16:30:40Z), 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/USX9P1340467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x783b36b5a3cbb4458e48145fb2a28ac5a2a8c0aec4fbb061913cbcfe5c013930. 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/USX9P1340468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92dfbdb510574c34c967a1fc7f35327bb54d1db538ef435d942c77f0ba7ef0ec. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/USX9P1340470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00c83ede2e7f583890c86c1d9ca7deb4d6880bbdceb6ec399a763d657432f7cf. 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/USX9P1340472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdafe3a438131c26124f554b2169d4596ec2c19e435ad758511ba478609f333f6. 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/USX9P1340475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfceddec0219b336e8e40c6f54f18423b852e28e6cdad099af8b0a8e4870204ff. 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/USX9P1340476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ea92f6adcd07ba4a516eee2048e63324e935ba10fb11e558a9bf2cfd1c9b24c. 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/USX9P1340477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d6534fd58e69e29dc35b9c5a6994a5530e86c6c410014b46596f8da2cee6c6b. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/QZDA72408016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc52c7d4e7ef9f44416a259a8bdfe5422dee27404d30c13b38f26ff7d6689450f. Chain 2 (Bitcoin): anchored in block 957735 (2026-07-12T17:47:43Z), 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/QZTB62483689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd682173eff25cff692238ee99e9912eda044ca300d27bce3af7bfdd2c0530f88. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/QZTB62483694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x259ebb5407f7c65e107884c7be70709377dfeee3f453066d52e18a74ec4874df. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T03:42:07Z), 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/QZTB62483696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4097d6298f1a0d68b1bd24f95d5e8a7e0d23ddd4409e13416ad2821cbde07a3f. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T03:38:27Z), 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/QZTB62483699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d8f719cb5fe2d05c8ab6f7119fcd1b49fd81c87348dddb88e45d8fce37ac10d. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZTB62483700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f0cf0f576c4e0ab264970cb0753d13521dd9f76e51bd09f0a7e6fd578ccefc3. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZTB62483701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x588a31b8ad474fe426bc38a8e669cd7d89bedf620cfbb1d84a35e81b3f0deaad. 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/QZNWW2577480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0216d3c48d0ac2af808403326a3ed46a535e4168e96ff7b10bbf0198e5fd384f. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZNWW2577483.
Nahom Favorite Vol 23 (Yetizitawoch Tizita)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa28801b921190b346bb7488210868243dd32c59ca485570da39c7b67736f0b5c. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/USCGJ2173010.