thumb|Désir, sculpture by Aristide Maillol Desires are states of mind that are expressed by terms like "wanting", "wishing", "longing" or "craving". A great variety of features is commonly associated
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 0x4713c0627740f9b43db60e4320737ed7524dc374e4865a1f002310210d5216e4. 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/8657df97-a624-48b6-b088-f9c8bd8b968b.json and https://artists.proofprofile.net/proofs/artist/8657df97-a624-48b6-b088-f9c8bd8b968b.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 0xdbc0cee076d625312a38f87b4935159c76e947eec04b1f370e25a4af68c3186d. 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/QZTAT2156232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1eb57731046ba9cf3a6852a4bdaffde3089da731e5e6b05df774cb1401ea223. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:28:42Z), 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/QZTAT2190775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63ae137fcef5ee315ba8253c004d17d3a27ee30884952a20c961dd439222c4d0. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZNWR2576516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf87caa12960340c140a5ed5f02fe1ccf469ac6e2a96600fa01ce039eac2840a. 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/QZNWR2576517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08198d99f967dc1f014e24b81a8d4a8ad24882cf1c01a0516042dd0e2d2430bd. Chain 2 (Bitcoin): anchored in block 958376 (2026-07-17T06:41:00Z), 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/QZNWT2528519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a065de208cb2ed99ed5b377f075e8859d4f5b838ea0e25168a1ffca96bf1c8d. 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/QZNWT2528520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x535cbb153b478e37b49910d1fc76d73d27e0e7e402d8b79bdf8a02401f4bc7b8. 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/QZNWT2528521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf72016c9e1dba4f133281f93e2caeb7af6fc7b5d871b0d817834ed81182ff752. 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/QZNWT2528522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e4c27d1363d90f7aa30bddc5025609e48c08efb7a4db7df81d775e8c6a519eb. 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/QZZ7T2502021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01e05d94f47369ffb3b584da98a80367567cd067f353d98271c3268a66cf7336. 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/QZZ7T2503593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f44713fe0b58846238f197431a6fb0f305c5e3f7dcc8238862c2bbfbea374fb. 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/QZZ7T2503595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0202f7074d193043ed8ea32c487d3ded1cb0f30070c894adbd61eef3df454ce. 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/QZZ7T2529615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd864bb3ca28f0adba4b59f5bef58bb5db2b0de43a0edef48579f93f4e8274f09. Chain 2 (Bitcoin): anchored in block 958476 (2026-07-18T01:26:56Z), 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/QZZ7T2529623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54e938b9948167707fcc9396037e7e507b0c42f089e2a05ea2693c81c8759866. 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/QZZ7T2529624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dc245ed56c631a7a04e19f38eb0606eef832c2abadbf1c12c63bc093d2e52cf. 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/QZZ7T2529625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9da352464b2cfe7065ce4e1d592207b752225145cc8dd2cb88d5a201341455a6. 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/QZZ7T2529626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77203bafb3c59fa3fff6daff149c9b5db91a9097d07bce42e7712cf84ee13fe3. 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/QZZ7T2529627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d400bb65880006f01071ea09f48c77e35f6447bee890215e9690171562728ee. 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/QT3EZ2548398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06be0e47715d6334684c6c5235994c380f03c7b667295e0ac64ddf626a5e7125. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QT3EZ2548399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5aa66fef8e3fefa7c18afe44ab658fea355b6c5e7e7c5f4fe1501c24fa37c32. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/QT3EZ2548400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6858f8b5cf1fb846b0ae086ce4be3f952be3a2b10c27fb453060afb2dc074fe7. 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/QT3EZ2548401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb914cc943ee07329fdef8ae987354f5851df544cc97af31b86255cee4dc2255. 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/QT3EZ2548402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96ab9a4b109f43c52051742184c989dc60dafdb115b0d854700e7c687c2df569. 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/QT3F52532941.