thumb|upright|Jacques Offenbach by Nadar, c. 1860s Pomme d'api is a one-act opérette of 1873 by Jacques Offenbach with a French libretto by Ludovic Halévy and William Busnach.Lamb A. Jacques Offenbac
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 0x9f957b81d58e4d726b9a1dae2faf648e64e70c7d3293ba2451f8eb25845a9a3a. Chain 2 (Bitcoin): anchored in block 953610 (2026-06-14T07:58:09Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/142cc3de-62a2-4dfe-abbe-6b2cf74e39b1.json and https://artists.proofprofile.net/proofs/artist/142cc3de-62a2-4dfe-abbe-6b2cf74e39b1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
10 trésors d'histoires, Vol. 1 (Les trésors de Pomme d'Api)
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 0xe73862a9714bc93750249847b2ce912c447c04043fabd29cf32a193fc3c42432. Chain 2 (Bitcoin): anchored in block 959084 (2026-07-22T00:50:00Z), 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/FXR482200758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac781070087ca76761bcba6380d1e2f15db3e3b6aa6ae5cc83bb357d8f4d80c3. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/FXR482200759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6ae912e9e22fac73933440d5389b6bd44741910d5a9526deb70294a9b667555. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), 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/FXR482200761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaeb9e8ce532841db5a5f2065ce17aa0188d5afebd8514b9c13b09fdb744246b. Chain 2 (Bitcoin): anchored in block 958992 (2026-07-21T10:12:17Z), 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/FXR482200763.
10 trésors d'histoires, Vol. 2 (Les trésors de Pomme d'Api)
L'anniversaire de Loup, pt. 1/2 - Histoire
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde5cc155012b9b9d9fb807a652b93a767d0a983927c8488b065b87e8f1aa96f0. Chain 2 (Bitcoin): anchored in block 958582 (2026-07-18T16:47:25Z), 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/FXR482400121.
L'anniversaire de Loup, pt. 2/2 - Histoire
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb55437c26470be43b864c6210433906c34799e6ac02145113b0835172374a7f6. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/FXR482400122.
L'école des taupes : Vite, papa, vite ! - Histoire
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d01c3657439b7db63a6468ce908e7435df063c7ac0d51d2d7744d7853ea6876. 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/FXR482400478.
L'école des hérissons : La bêtise de Chab - Histoire
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64f121a57c01c7dc189d4029269216d2e6c660da6fb42f91bef8068db5d33106. Chain 2 (Bitcoin): anchored in block 958366 (2026-07-17T04:59:09Z), 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/FXR482400479.
L'école des fourmis : Une sieste agitée - Histoire
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54caf82251d158a11c6024bf4599ede357c253871cc3433d7e8918a5a028c8c1. 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/FXR482400482.
L'école des écureuils : Une journée bien trop courte - Histoire
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dc21826fbf9ecf9a78ad1c09da680d653217ef62b48bf5e759c25574bec974d. 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/FXR482400484.
10 trésors d'histoires, Vol. 3 (Les trésors de Pomme d'Api)
La sorcière qui n'aimait pas les enfants - Histoire
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb38590d1e370e0e3ab1559785e010fb0d4f7e8e27a4721a59568febb3dafb4e1. 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/FXR482400537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05206582ee1c515a8b3720efd1ddbd0b9c602a0df00cf659f73c73d146f56440. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/FXR482400538.
Suka et le petit renard, Pt. 1/2 - Histoire
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x922752183f04c3bae2872458b5a37cd5e93ce6241be47521f9e6f9c584d40353. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T04:30:31Z), 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/FXR482400539.
Suka et le petit renard, Pt. 2/2 - Histoire
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5419466b908dbffb524e02c0e7d6ddbcbadad7b07a7c424be93cdbb9d353eac4. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/FXR482400540.
Clara Bistouille et le Père Noël, Pt. 1/2 - Histoire
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x139ad6f1d694ddaf5318f6278752e318d5cb912214bfd137a4fc1c0fbb7472ae. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T21:08:39Z), 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/FXR482400542.
Clara Bistouille et le Père Noël, Pt. 2/2 - Histoire
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffe40bc1295f279aa851d40f61499aab7e651d742d491f1fc5472ff0f0216353. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/FXR482400543.
24 histoires de Noël, Vol. 2 (Histoires)
24 histoires de Noël, Vol. 3 (Histoires)