Flicts is a picture book written and illustrated by Brazilian author Ziraldo. The first children's book by the author, published in 1969, it tells the story of a color known as Flicts, that does not s
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 0x2cefc0b5faea62cbf37f9b8ae3fbef88439bd0630cfbc815dcd5ecbb5566d839. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7a03e0f8-ad9a-414b-9272-ac5c7707a938.json and https://artists.proofprofile.net/proofs/artist/7a03e0f8-ad9a-414b-9272-ac5c7707a938.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 0xf6d18392e1ffdb92e5a5ca6de350f521013f9253c0e73185e5bcb6ab0298c02c. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/US7VG1606000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde7d8284e55097715b3a1b5c5cd7176e4000092dbba0263f2883664dae89a97d. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/US7VG1606001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb09578cad1b05a702f683388a5afc47ac4c2a58422bd382cae289d97843b4ab. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/US7VG1606002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e6081c3043d5ff9426227bbbb887c55b98310190ec17a8699c4c72173686d78. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:47:33Z), 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/US7VG1318118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86ff00073a66b51c5bf6e068fa8fb01e3036ea1a9305e44e4887cbafe01f7366. 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/US7VG1318119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x880fefda4213ffdc0abe571418c4027010c9429cd3fc2b2ee2ab54d3120c73cf. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/US7VG1318120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7c03f5e3410ceb7036245e381e496738fb4d8d3b0824b50cb41415182c88b7a. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T21:48:59Z), 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/US7VG1318121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4f16d116efc8c14f68674da2b312ea8ed73cdfccb5f91115f0eec944cf54a25. 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/US7VG1318122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd41fd667b6c83d462f70041e0c6487cf3eb0ba58615b2c9105180a1589eda25b. 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/BRGFP1200079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61f993e9646199f1cb7ac2b9f23cb0a34402cd7b314cf4a942ec73d39132436a. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/BRGFP1200082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4e3984561067a7f49941a8bad1bd9afb9afd5e1ef6cef5e235e410bdd3733ab. 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/BRGFP1200083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1ac8b492a79a83b9976a6ae9d5f431156db5cafa82ed74ae493d4a909894c51. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/BRGFP1200085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd37f4e74b8065768db179a827f99adaaeb89208008d434effc3a9023efae5ffd. 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/BRGFP1200088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7b3ba6568086d7c5b403706b829d2f181f2daea3185aa3fdefed0f139aa1830. Chain 2 (Bitcoin): anchored in block 958371 (2026-07-17T05:45:43Z), 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/BRGFP1500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2687eb4d908cb6dc217274334bf08ec1fc9eff733a9b8d486677f03476a657d9. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T09:07:59Z), 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/BRGFP1500003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a0cdb4e11c8547fddf0c47c1fb45baa31afe815ce22bf161b2f761736944060. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:57:43Z), 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/BRGFP1500005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x891108a6b5b85c9521223ff7d3f0431143053b32b6f7df989bf6de0f52c43625. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/BKS8F2400016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x891108a6b5b85c9521223ff7d3f0431143053b32b6f7df989bf6de0f52c43625. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:45:23Z), 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/BKS8F2400016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d91ba7c71f00ebf11884da3b0cb7117a861eb4a4c2b4c3dca76bf7ea0e8ecf3. 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/US7VG1319009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76f79960ffdb8442182c13e6368dd8d987ea5c499c074d9ea607d8140d701aa6. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/US7VG1319010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8f68d2101498c98529034d64f709a779f7a6d449f96c0c1323b0ff6fef78a6c. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/US7VG1319013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56422918fae740e5f94a9870bf4ece76875d2e2e6ead07b94a5b2c788150a092. 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/US7VG1319014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3af308afecd9403eed3cf1ca2c01f0327bd52e051603844524f1f1cee53fdff5. Chain 2 (Bitcoin): anchored in block 960145 (2026-07-29T21:13:37Z), 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/US7VG1319011.
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 0xb8ff53d659d9c31141cc18579d70b5e47131bec11f9518cb46a6c242a027f5a5. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/US7VG1319012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7451262fcf1d306ab376a25c0ab308dbce38448cc8c32e3d2bade72576f599b. Chain 2 (Bitcoin): anchored in block 960175 (2026-07-30T00:16:15Z), 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/US7VG1319015.