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 0xf5b428bbc6bf34b3561fbb65b2a93016a4770c742dfaa1cbe60eb02b71bbeaf7. 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/e1240065-4257-41d1-bd11-e8e2546e45a7.json and https://artists.proofprofile.net/proofs/artist/e1240065-4257-41d1-bd11-e8e2546e45a7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Gregtime (Enregistrement en public à l'Utopia)
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 0x2a19a946942dd9152f59d549165e40c466ed45a41abc3fdf283f23d7134630ca. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/FR6V90800010.
Harmonica Madness (2 CD Box Set) [Remastered]
The Blues Will Never Leave You [Live 1999, Remastered]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x623722ea9b64bf3fa7589127bbb4e7963cc755e6b38117e583c6c9ad98a55fb2. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/FR6V90800316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d14dcfb0f8bac238de3814d6db7f685da5576c0cafd879863a25abfb74986aa. Chain 2 (Bitcoin): anchored in block 958355 (2026-07-17T03:11:50Z), 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/FR50O1801010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb0ebc3b39262fc0e2c31a1e364fa06c701ade14ac4c95ffa12af8cca2cadd94. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), 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/FRDH22500110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddcc164085f5c1411b66ee86f3a7e154e730cfbecb7f808389b139b6d1212f16. 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/FRDH22500910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c6c07885029e8353327a5e6f20d0a08d3d6960509c002a8043879af5393615b. 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/FRDH22500810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bf2632478bb726f79d72e13bf21573ae4ff25c4eacb561b591826d6815b0cd7. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/FRDH22501110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cb215c43fb9f1c6e467d48f3eb59a9dd2731bef23b94ac0c8c7ccf213712f15. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/FRDH22500410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4a82e6c5995bed81ac5f2d04259e86c4641f272e00dce8d13955f6b2953bf18. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/FRDH22501510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb70c0afd0643442cee834c19f46d6a11d6a633ec891d9fbb62e37143a1f2b1ed. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/FRDH22500510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1be3febe0037e5a335703e87555421545eedee357ce84cb97216633fda4c4ad. Chain 2 (Bitcoin): anchored in block 958776 (2026-07-19T20:11:59Z), 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/FRDH22500210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3a17df86b774f92d7ee9a268bec0ac67ba302fa6f74b376ad19a23a1c641a62. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/FRDH22501010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ff738fa625aaa296360f1a5d2f89ad9d89c074df9b081a717d9c80fd8ff35dd. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/FRDH22501310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd008d57eceb4178a3144e03c6581683d9510aa4f0ace977566e17bb5214e36cc. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/FRDH22500710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccd11c4d5ca2f2722614064271a7b3dc17d06387f25f7a58585bf3154ee8730e. Chain 2 (Bitcoin): anchored in block 958850 (2026-07-20T08:32:30Z), 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/FRDH22501210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1f47763518f4f56a30e68bd213d7b8426f7765c8bdf312f1cb5d5243008288b. Chain 2 (Bitcoin): anchored in block 958864 (2026-07-20T10:24:04Z), 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/FRDH22501410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56864f598799051d25f1c37879bad77e93d803b58017b0e3a1f2130152340b47. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), 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/FRDH22500310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca5231a45b57d8c2ac684cd555a820168c0e46403862269e1e053742ef55b11f. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/FRUM72001374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85cf972765315a70e8aec9d29dd82e7ded990288244ee39ab9f82bacf220808f. 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/FRUM72302175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca5231a45b57d8c2ac684cd555a820168c0e46403862269e1e053742ef55b11f. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/FRUM72001374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85cf972765315a70e8aec9d29dd82e7ded990288244ee39ab9f82bacf220808f. 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/FRUM72302175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca5231a45b57d8c2ac684cd555a820168c0e46403862269e1e053742ef55b11f. 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/FRUM72001374.
Gabrielle (feat. Greg Zlap) - Live au House of Blues New Orleans, 2014
Live au House of Blues New Orleans, 2014
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x579ce4a10ce989b57e9adea9c9ca68f7f67f24a3f9782b5cce27098cecbe85fd. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/FRZ042200439.
Gabrielle (feat. Greg Zlap) - Live au Fillmore Miami Beach, 2014
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x562964ab1ef02ae4d5a2f099a73c0d628e31cef26326677e25e02429848ffb1d. Chain 2 (Bitcoin): anchored in block 960288 (2026-07-30T17:41:38Z), 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/FRZ042200367.
Gabrielle (feat. Greg Zlap) - Live au House of Blues Houston, 2014
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7467e01c5db5616273c00b72211bdb50d99f361d177ce4d033577d43f69e10bc. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/FRZ042200510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46683c7ec4e83613ce0f93482dd9c577c83dd13baf553ebcfd821756aaf76051. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/FR9W11906661.
Gabrielle (feat. Greg Zlap) - Live au Beacon Theatre de New-York 2014
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc90608e40cd9d92ba458eb0d96ad884ac35e6944bcd688186b83bcc3535d1398. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/FRZ042101071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca5231a45b57d8c2ac684cd555a820168c0e46403862269e1e053742ef55b11f. Chain 2 (Bitcoin): anchored in block 960125 (2026-07-29T15:38:18Z), 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/FRUM72001374.
Orchestre National Symphonique de Roumanie
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc07fdf6ac2feb1b87cdb924789356fe4c48a6a992c5d07c7abd1f018b479334. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/NLF361701210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe27df083b70415e904d2a99c8abd01c9cfe183a0c9a869968cfac8dca5cb231. 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/NLF361701220.