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 0xe96ceacfa33fc9411fb9813742568411f5d397a86f5199a149372eec01cce60d. Chain 2 (Bitcoin): anchored in block 953602 (2026-06-14T06:58:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0ee4b656-05fe-4848-8db6-ce23c4b635d6.json and https://artists.proofprofile.net/proofs/artist/0ee4b656-05fe-4848-8db6-ce23c4b635d6.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 0x0819f6f3f2d5be137d6fc5fee81e901e7ce038845a9cbc0271186677cceded58. 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/FRX852203330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x784f783abbeab4a5209b084172ab82615320962a0c3952d382005f2b17c6e7c7. 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/FRX852203370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06258b15f1f5c943df2b97d688798c2f654176d71a1f93333c706f6d18d2e54b. 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/FRX852203410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c95e36b0848731678933ef9b9493a0c081fc46cc06279f83e73790b037783d0. 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/FR2Y31800003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1969ead68347d3abedcbd45db05c36e4bc42bfd401d3625cb9da1cc3ad064f09. 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/FR2Y31800004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b6b8353e54f6416b654dc83682c17c0f6a7e2bf59d65b9459bb336d055e7ed0. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/FR2Y31800005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e88899f7a4939d7235179c8c62a71ce3df6df409b184040398bb5612d7a2365. 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/FR2Y31800014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71939bf831e33e6900b1ae1c1fb4dc188739d6e36585a2b285873cdf853ba9f9. 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/FR9R01000218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb701f342dae03c415b88f493b99ab99961da0ee783f7f7034518996502fc577. 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/FR9R01000219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91f90665cd6ba1e67c3e52ee5be0291976ed7a28a3650c28a83fe8936cce8dc8. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/FR9R01000223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdc5bae254a50844ff4af2f1436af381742c6f5b1042694c153af32b8878b41d. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/FR9R01000228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe30e4fa72e75286a2ec78d1614b123c01478d524fdadc7a0d5806e12b45ad69c. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZMEN2411025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e5cbc423c1215ae578e5d80ccd80fcc3d87b477c9dab1e1409bd9eb5fba6a4e. 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/FR0U91203234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97d253b826ea716372566f2c6f261452e613bd4eede7e83de185a527cfedb6bb. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/FR0U91203235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe99baffffd0947bf4d07f49f3cf7d2b6bd72a7511a6cff4808432d7815b469af. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/FR0U91203238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c6f6a6a35be85a5bf3aab606ecea1b1c57c1b47a38abb99d9d6ea790798333e. 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/FR0U91203239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5a82e7485436198c6960e2a1f3ec2c1b7af96d06b77dc024ff6623f37b03e67. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/FR0U91203244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa58712ba9f55393d53e612128352a49841f94e678784f539cca51f38d7cfea0. 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/FR0U91203246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc35880925a56b5ecd536e7ac42c16b2f9b831868a33a66a43b7dd11ee692903. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/FR0U91203247.
Spécial dédicace du rap old school français, vol. 31
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42258317c3c15b403bcf90e44780631f0c3ea1e9f28da76ac231492d39534e07. 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/FR6V82573755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8159566d690a66ac2d6d31d15d66064441e37d9fc667313f28a7165cba533f6. 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/FR9R01100250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a81719d1cfde1e3a6a575bb36fcf9fc53fd407158898e57c41e26c46d45cb89. 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/FR9R01100252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50c9e3cf6d32611903a7f91c5083a44b1271dfb5f333dbf5df0a9571d0e9fe68. 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/FR9R01100260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x685e22b933aad3e45dfcf2641a820cbd42a3d067569146615f1b54a15c7abddf. 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/FR9R01100262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x084256870092152187d8de7a5f5494c15d6bf4f38d26d70ea773c30843e270da. 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/QZK6P1986029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8205f3aafa4995cdca898d1609d7766de719db2c51e1e90a5c6f6c729670543. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZDA71898216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e93cbb85d2bba01d359228f8d66c006ceda0415bc3ae80f1758b2e6fb840756. 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/FR10S2566068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6fbed70eabb1a51e8e29163e87446520b33e01e9b396f6036692caff770e7a7. 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/DGA0S2444505.
La faute d'Abdoul - Part.I - Live Session
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d6b6078bc4a0b639d9080d817c9d92acab5698e1f65b320df1516a3d2b13d7e. 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/DGA0T2440768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c8831cc70b06c11030e5e96d550d6de7e4daa3e9e1275d4aa2d1c79a933c4ff. 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/FR10S2518938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e93cbb85d2bba01d359228f8d66c006ceda0415bc3ae80f1758b2e6fb840756. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/FR10S2566068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x928ebec70d9392b2540bbc0b10df2b5b8d94c4081338945cb0c0d117bce190c4. 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/FR2X42524395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b05209e2962c26efd64ee579f67a2cc6e0be393263dc3d7f35942f3a218aaaf. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/FR2X42567308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe420972c3883d038ef48c919f42096ae1c7bb9538d11be1f216ff8c12af9c277. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/FR59R2541397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd4e026774df8b854d03371dcb1922498ba5b672580abaa95c231e40400deefb. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/FR96X2508123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f02fee0c8c5571f9d379f3f9588d0a34fe680381f58b70d00eb19643231b565. 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/FR96X2574193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3c639138e6e5dc21d8d8c3a51db43e3fd75d45ba7b659da1b508128c41eb6d3. 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/FRX202548660.