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 0x209666bf32eb76096a83ecec9870423d7927545637d248f2db047402d821b92a. Chain 2 (Bitcoin): anchored in block 953592 (2026-06-14T05:36:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/06248603-1807-4c85-96b2-e9da62009e46.json and https://artists.proofprofile.net/proofs/artist/06248603-1807-4c85-96b2-e9da62009e46.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 0xefef85156afdce6aab94015c6e8f9ffbffe1ff53a09bc92c876f458c06b3a7be. 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/QZZ7W2457220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e411ecf0659e607c7f80d24e99848a9ab6b9eb3d9da901b590f01f86f06fae3. 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/QZZ7W2457221.
εισαγωγή στον κανιβαλισμό : το τανγκό δύο σκορπιών
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe77b0d8df9f11999d126c8a8778b5c3d847811dd28a2be57299088d4b0c35168. 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/QZZ7V2452703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b00558449e20ec9059d89155f3f156821005f0177660f2b45ace9ebc1fbce02. 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/QZZ7V2452705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc95961ca71d47c6d760f7e1fee788e0c5a685da6af57ffb3ae4a4154cfa0d16e. 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/QZZ7V2452706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dd76d370f318273ba27e9229b7426abd2dbdf13cd4833803a592a1e930045e2. 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/QZZ7V2452708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8625ed4fab7d7efebb21ff8d63f716b8fb257475a30e55c5d374d13350847605. 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/QZZ7V2477535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f0382342a2bd070016d89a1a88507b16f8f47eb4f815fe67b6d67deaba054a4. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/QZZ7V2457073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfbdd735c5289421879e44f0611d8cc1db4c6c32f83aef26dc546de7565a5e6d. 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/QT3EZ2431484.
Όπως πετάγονται οι γάτες απ΄τους κάδους, θα βρεθούμε
Όπως πετάγονται οι γάτες απ΄τους κάδους (intro)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5e61f7b81be3a1239a6aaba7859ab4a5f2129369dd43e57180f197437432e66. 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/QZZ7V2453928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x009c106b6288b59b0c96b1385204adb655c730624ae4649cb7f88b7e92f1be8c. 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/QZZ7V2453930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5e4ce05507876e8c343bf5333492c082741a0cb4790bbfe15218728a5dabb24. 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/QZZ7V2453931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bf6da43387490090f86d316ee419f498d290a9d065f2b45590bc34cdf6acdf0. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/QZZ7V2453932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd4f6db8934759231ae83e8f9a888b4f26cdc8368d34a8f0972e4bd7e59149a3. 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/QZZ7V2453934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55dccb229a59c9e892faa1fa6e796834ae33ee761675ea21e7c38578d5f93aaa. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-19T22:59:45Z), 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/QZZ7V2455550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1207b9d61de9733e743d4b647c0de92d059b0e806200321ff3eb3ec98d364d9f. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T02:31:22Z), 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/QZDA52523803.