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 0xa0e21e350f6842e49fd2780ae63fcd69de9b18f4fcf295c4b8efd36a700f90ae. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5cad87d5-c907-455d-b07a-7ce36b417bae.json and https://artists.proofprofile.net/proofs/artist/5cad87d5-c907-455d-b07a-7ce36b417bae.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Ciné folies (Les 20 plus joyeux moments du cinéma)
La chanson des jumelles - Les demoiselles de Rochefort
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 0xa146c96b459a3c03903c6a7bdf98c7a45df54df37c7878d106441b25e2c04ce4. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FRP2A1000260.
Douliou douliou Saint-Tropez - Le Gendarme de St Tropez
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5b46db6f53597145838eb25468ffbae657dc2e70c100c83cf209bcef6a0af70. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/FRP2A0400030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bd64c706cc10896c5230b5272257116b4dffb1daf42842d8b592faeb2fa81a3. 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/FRP2A0600040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x079f569e7e7adba532d684fff41b619c1249ab41f7dc3c15ac6a7c6060d6cf61. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/FRP2A0600050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe611b1b698c5a055e6f1ae45942662d0480fe4ef8ee753976644cb3ae680d6e7. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/FRP2A9700010.
Everybody Needs Somebody to Love - The Blues Brothers
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18976604b14bb96a66ae5231965946fab4d1734ea6b778584234ed76dd52144a. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/FRP2A9900040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a073bb673f8eb4b330fba5a884b50c767247b44d9eb9ca720d7d6d1703385a4. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/FRP2A0700050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x227052002fedb16000cf378c5afd6ed5a28d23cd5ec82d9985bf765829060080. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/FRP2A1000290.
Pense à nous deux / Java - La grande vadrouille
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5a7832e8cd5f7b9d3be80614cebb8154c103e8f07dd5108647feb420e6b5333. 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/FRP2A0400050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a186a4fbb6f1c5d1c23d5f6a75df7770a949e8b4dfd98c144c40f9faf1c578d. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/FRP2A0400060.
Burning Bridges - De L'or pour les braves - Kelly's Heroes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58a1cb6e683c9b5c28fb3d55798d25b8ac780a73e2855065de5193c70caa6629. 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/FRP2A0600070.
Où est ma ch'mise grise - Grease : You're the One That I Want
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c427ffa233bc6a8b619ecad3a39b36dccc09bcd8f1e674b909d10c858078957. 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/FR25F7800010.
Danse ta vie - Flashdance, What a Feeling
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f0f4e981408f5be505dbcc510729792539df273b6792810e88d214388ea1a78. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/FRE548300010.
Bonne année : La fête du réveillon (Le décompte de minuit)
Le décompte ... 60 secondes avant minuit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb679a29f651fbfbf638f6e93ee0a582a73b31fb65c89d911dfb80e32f9f01091. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FRP2A0101120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5120ec54c1ff8e1077b73af288369ef9fe558ddc482a7389fe122c3fc4b22ec. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/FRP2A9800010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8915e724640fbed845c6289e4f82fd7315ae84543d5c3261809f41acb46b23a1. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FRP2A9900050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bd64c706cc10896c5230b5272257116b4dffb1daf42842d8b592faeb2fa81a3. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/FRP2A0600040.
Thème de Zorba : Danse de Zorba - Zorba Le Grec
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a073bb673f8eb4b330fba5a884b50c767247b44d9eb9ca720d7d6d1703385a4. 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/FRP2A0700050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe92db1b4009b201b52d6114bf5043905f7004dc2e1af56659e146684cef26e90. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/FRP2A0700090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf267ac9b26eac9a6317b679febd468049996e4dbe39787eb024e203ac32f2eca. 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/FRP2A9800030.
Saint Tropez - Douliou douliou St Tropez
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5b46db6f53597145838eb25468ffbae657dc2e70c100c83cf209bcef6a0af70. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/FRP2A0400030.
Paris - La vie en rose - Mélodie instrumentale
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c46b1df6c2951716d181ea78b4a15aacea5bcd915a8b0fb368a5b4002f33933. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/FRP2A0700040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf908b05bad7fac82e006e91d713a165bca14917fca6b6b7d52130ce8257efaf0. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/FR6V80541296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x157b595e9003a53461d05f35595883e46ef8f5946f18d7139c7e6e4a36647196. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/FR6V80541300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef734e7fd1d500398f7b600261b7e1e1f443af25b4696888cb376bf19fe4e0fd. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/FR6V80541301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f1b12fe0f308f843941d4333cb994435ca7cd24a78f76b213679b391472c375. 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/FR6V80541302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5096a2ef2d61cc4c2142f88619e34fa3e8b7040e44532fd8046a39cbb2f3920. 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/FR6V80541313.
La fête la plus folle (30 titres pour faire la fête)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe92db1b4009b201b52d6114bf5043905f7004dc2e1af56659e146684cef26e90. 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/FRP2A0700090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97831e93e53a10fdcc82f52b7fe05920a1ce28c9ac6d359dc6d34c202b8cb425. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/FRP2A0500060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34c1ba8cd55f6f8d985482d7878769e766a314e75f6a16c2fcd63ebe1e5a5924. 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/FRI178601370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5b46db6f53597145838eb25468ffbae657dc2e70c100c83cf209bcef6a0af70. 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/FRP2A0400030.