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 0xdbe8b577f92fd410bf8e41f323f34cc37d72126caac6d74deeed61b9bb8af2c3. 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/37240a98-028d-4233-b933-84757d122d4e.json and https://artists.proofprofile.net/proofs/artist/37240a98-028d-4233-b933-84757d122d4e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Jak to z nami będzie? (Acoustic Live Version)
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 0x42deb29c6a8f7d387deee1840c572ba4c6caa1eb89ac5b232a0e026d1ddf8405. 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/PLE551800013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec8466cf5ca3f578c5859975250858ab5086dc8c3c7b2ac2287c99ba8be539db. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/PLE551800014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdca3aabbb6e5c932c924e2ed1cfaa6301343f22a4253afb2b117ebef59496ce. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/PLE551800015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a2edc9c778c2fcb6142fa81d5a00f59975d713d3d920b94eb87a2e806bc8f30. 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/PLE551800016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58f79b98bd6fb26ec7341eb3f5a1541a9e30c910b7c1a775531d364d5ae12d9b. 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/PLE551800021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2da3cfff6fec2d526455d5226ccdeb8e597beae116260e01a04a9e34a6f9d896. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/PLE551800022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0bd5c38e2e432451b7a5766020c87c825e35d4d205a9e5ea9784ff2ffb00001. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/PLC062258075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0bd5c38e2e432451b7a5766020c87c825e35d4d205a9e5ea9784ff2ffb00001. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/PLC062258075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07ece6034b42acc6696b8ea2041c5c370afb17459ab68a97e5565351a87e3717. 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/PLC062364236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d8196fdcc596d8fd41c10be6768414ec33855cff834c97a945e8a42d642c2a8. 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/PLC062242231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e3ecad452ee453e1c411cfe3ab1e0292b0d692ca8ab3428c4b8f1abe91f95b5. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/PLC062364244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb88d2a41654e36dc32ed448320f3b35a00ce65e88ad4208be316a56e4b791969. Chain 2 (Bitcoin): anchored in block 958775 (2026-07-19T20:13:58Z), 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/PLC062401026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2eb953fe557edb3ad2b0d4d0373f053b1a627d2dcc089d9475843416771faf22. 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/PLC062409402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a83a11705a0296bccb9889fa58cc87e660170a2d173eba7e62369a24933532f. 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/PLC062429981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25949907850710d604fed2f5f03dafec14f1fbeb576e44ca89c31f3c3f715c97. 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/PLC062436669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa029b1345b53b29f13c8c6586c604ea0ba777081258b91aed7f900992afd0487. 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/PLC062502330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ba12c922ef54ccaea9024682dbdc809298a12cfccf36cbe0498c884a7280493. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/PL4K02501910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd24d6aac7393ff14ebbf11fe5c0afd6252249f6fab08b1e8ce908aac3d880455. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/PL4K02501911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7bf0d079881149bd714140bd7e3302332ffd0801f17373354ee1e650dd9d208. 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/PL4K02501912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17cb1b055d57ce919996a409a309c5169e3a77df145c0e2103893849509dd7fe. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/PL4K02501913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00559d58d0b11bb4a214ce40884f2fe848387f63a7875983fbb20dd4ed4ee9b3. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/PL4K02501914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x679ca973663bb1f9538353e63cf58588d5edcc3dbd03ccfb84e1795688cdb137. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/PL4K02501915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x280b85c4ad6b4f01aa78add6b114d5a0bdd9bcd0fc3003f6833bf1506982c0fd. Chain 2 (Bitcoin): anchored in block 958860 (2026-07-20T09:58:28Z), 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/PL4K02501916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f8c77fef336cbf570e97b14b86f4ede801f49353a84f515d3c610e0630ee47f. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/PL4K02501919.