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 0x7d2dd43860e973a65fd31c8a14fdf5cfde4009084441b7371ebf981b7e887dc0. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/90261356-5125-466e-a8e8-d3c2d86c3d7c.json and https://artists.proofprofile.net/proofs/artist/90261356-5125-466e-a8e8-d3c2d86c3d7c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Music For Two Lutes By Franceso Da Milano And His Contemporaries
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 0x98ae2bfd38368370d6a5904de246986e50377d4f9efdf158b27f90b11032b952. 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/AUMU09800076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x892a69745a5fcaff836305d8b8e6a2eee537974d1531b652712ed87bb0389da1. 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/AUMU09800072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab32a355bff854083bed9b958887d8240c0a1dcb5bf9c5b831270730c0f44865. 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/AUMU09800082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf74d53bd228c45245029a13b6c0c5a5d411d6f950b84d9060d0fd3692e9a7550. 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/AUMU09800070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x057a8116c165ed63b910f56863b5eb7aaebe9f5e219b1eafd9c1a4057e26eebe. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/AUMU09800066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe209d888e7626687260287db06f439a5f8cfc5de501e77b16175e5ae1073cb6d. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/AUMU09800077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf13d01156ac24ef668c74b261f208760d3def68e154e296ba6136ed57be9f9e9. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/AUMU09800085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2b413017ff085c55fd5111786cdacb1e6992626aaf33c614518c01be7e8b893. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/AUMU09800080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x965ab8da7612523812986a683209a1f3173495c86bd3cb161c1314a6738d40e1. 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/FR10S2104386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6997213a0294897a9aa2a37ea023f13565b072866a33af801c46ccd895894ae9. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/FR10S2104387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f8ed6472b6df8db821643f965c033ac2617a2f3358248cce27ef517cda38c02. 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/FR10S2104388.
It Takes a Lot to Laugh, It Takes a Train to Cry - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d8e75617cdba4427f578cf484dc627979df07835c16d8914c72aca3c4e78b3d. 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/FR10S2104391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2be5416d63ffa954a6531056d547ea9826deb2346005d55adb75398d39fb00ca. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/FR10S2104392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b427fecebd6bcaf45aa9cf5e7391a3dfe948deca6f443d256e57d31b876e6f5. 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/FR10S2104395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9f8b6dfe14671795b6634e1b5bd85c9bcffb77bfcde3de5bae12410feb30c96. 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/FR10S2104399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa91453f99c66cd8e7e40db25830ca2284154f5c7ba322cae4e9517924a9e2ed. 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/FR10S2104401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79d8e269ddc2932dedb37842f12759328a147c27c458a6ac3992592f1b3d007d. 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/FR10S2104389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc76445265d27b4a8f634ad1159dd00bb8e84a858ec67554afed7df6932782209. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/FR10S2104390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb61fa8d03a6202aba474f207a30529092dc3f7949fea1ea95b660520402eefa0. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/FR10S2104393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a0d16b102d8bc5a5af07726423908dbb8b64b48a1f7dca50656d035cecbf813. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/FR10S2104394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb62d95133e672c2654086e5ae1910e6388c932c0998207ed9c6d745da8a6cde. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/FR10S2104396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e33a7d8746a610f58f44a5a50dc5de1d6deee4a07b4b84bf68e43708cffb149. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/FR10S2104397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ade296d5979184ef7713460de7633f1049cb51b956ec219c45e17576e7ce5f5. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/FR10S2104398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31568cdd6edf8dcc3522891a2acd808609cb531ee26ae5c4a38b6db9ba4e0570. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/FR10S2104400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8322a27dbeab4602e8e85a6905bbd9375cb164f5f93935bfa0ce9c485c10940. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/FR10S2104402.
Landlocked, Faithless & Free (30th Anniversary Reissue)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bb9a7bdd6bbb3fab1f026fae30e881d2707a3ffd3111a4f8e4a2e1f1ced6f07. 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/DGA072212120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9236c15b48d7be6d1825ac3c0e0f61da92de49f60ba0e48382b0a0548bf415f. 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/DGA072212121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7de857e994b30c4ba5ecd364926fda31c55fd9bed6163c6fba6a9a8997d485c6. 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/DGA072212125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x343aca29cf86f979bba2c179778c5322c0e206a85dfea0434d2dfdf32b1a9959. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/DGA072212118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6fc2407f9e2941314f629991997dc556b9db70e32638c360349f352424a5f00. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/DGA072212132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x309434fe4c38999c67e8bbb39e64869871d7ed28b102fd2f5f4c150c45e51123. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/DGA072212122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacc1939240225109234388301f342563107b12a3a658735436649480f247efe5. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/DGA072212123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x810fb737365f8a4dffabfec678aa70374b97ba1e8add4680f9cf5371c066dfd0. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/DGA072212136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe63aa53307a17e46d208aad1cd7a61a762990ea60186692cf8678b7cb7eedb9d. 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/AUAG30800128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7c081590d5c644fc27a782e04809e498f8bf644a708fc34877e882d2beefcef. 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/AUAG30800138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72df4fc4103cfd19fb61567e09c9535b5aa0992008f27498244a1411311dca1b. 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/AUAG30800102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x809d61cae6b2bda76930a7299bb44057acf53957e4724c7af579aec8305e5596. 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/AUDI00600003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb954f9d9fe904eea71356f9f0342be15f68030e3e47bd034fe2e4687c6f88c6. 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/AUDI00600004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05173546e08c3f23ff9fbad73aa86708e4b85a3a4f546012745eb5239cdcb011. 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/AUAG30800002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7243b947cfd0735f1532bb55125fbac93d587b54d208fc14534257fe2e87520. 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/AUAG30800007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x747fd23888c33161bd84a449625f19e4dc0419cf959f8def631308c132a843e5. 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/AUAG31200045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8618bd3d7b3c64f3875216e7f9bc8757ab5d2784de611ee4d5e434a47dd98e93. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/AULI01922690.
Singing Through the Wall. Songs for Western Sahara, Vol. 2
WATER - An Australian Story (Remastered)