thumb|Amanda Portales Amanda Portales Sotelo is a Peruvian singer, author, composer, and performer of Peruvian folklore, with more than 50 years of artistic experience of the Peruvian Andean culture.
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 0x61b07359f75e36badeca87f05ae308e28b17eeb9bfcbc419c768e80f8c2c5024. 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/41680603-1a41-49f9-8b7c-b38dd0ba5864.json and https://artists.proofprofile.net/proofs/artist/41680603-1a41-49f9-8b7c-b38dd0ba5864.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xead9b65c49645c5a6c8fd89d9c5d9d9d1b26c9ba4bbe5ceac5bc5bfb5a95767f. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/FRX451527719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacc342f0f0bb47ddfe3de615d6ab350857f246e877c5babbb751ce08c07fa508. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/FRX451527730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c2b191b02d05f0a7d4bc841d7fbcdb5642b3e3bce38255e6c90a82998fb71ad. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:52:54Z), 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/FRX451527731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe08e36bd8de60783cf168f997c7e4b3b2d83a38f2a3d938ea83a9c18efdf59b. 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/FRX451527736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1872e791bb7590e7250e9e543f65882ca5101d2fca7610327500a1dc7762ae92. 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/FRX451527753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6328be7cae0733453efdba21a34f5e5b70ca66a98232e341bee866f4f24e576a. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T16:00:17Z), 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/FRX451527756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf449868e549f4b0505e4b937f22e0dd3626fc0611b3de745d5c0a71788902bee. 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/FRX451527768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dd9935e8c7f08cb7b6cb6120bc81bfff68bc0c65f4a54ab7baac79886b66a1f. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/FRX451527829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15567df7d84ac1527612cb8f9c8a223efbec0f86e78e37de53675e8ab7c5267d. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/FRX451527832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5e5cfd13215a43f4383fd01705e34c5fa5754e4eaeb18303d3c5a401e29d7dd. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-20T01:38:43Z), 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/FRX451527833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6fea6aa9b8cb3e5f7707781586bf55bf7d5c4276d21e9185b1a855bd4135bc1. 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/FRX451527777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe97226803d6e371e9c8f7921b7aa7faa2bfd39683cfa8029ec8142e85da2cdfa. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/FRX451527781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaf8f464e5e428d78fd31650c7233071817910445b0a611c2b069c3ce78dd21d. 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/FRX451527788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2e19bc3758d7c11e627d312f5cbf58d633f9feef0631bd3cf746b5be9bdbd1f. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/FRX451527790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x032c4af6eec80d6a070e6504059ca1bea90a68bee9837bffc7dcf320214028ed. 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/FRX451527793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b95e1ff61ebb1b10111a58315dbd92678cdb02cd2ef3f565bd646ec22ac7454. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/ES71G2300177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0e7d9bd15813bfd4b2c0c5147ed7bf93a45ad8d9da8e4d0f91e008d75913583. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZNJW2359643.