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 0x349c70dd9d7ea59a45f94389e084041ad986c0f922ebeed238479a53ececf1b9. 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/38b30254-7072-4cf6-bd18-73a085ddec68.json and https://artists.proofprofile.net/proofs/artist/38b30254-7072-4cf6-bd18-73a085ddec68.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
laidbook12 different cities, different expressions.
laidbook11 THE BEST MIX ISSUE (Mixed by DJ MITSU THE BEATS)
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 0x2de020a015f42d6539b1f8ae675853023bca70df3b7f04a9e43be538cd370258. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/JPZ921103939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e6c7bcfd389474ab016673e24615e8373dec0c9e85a4dac849abecbd949d78b. 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/JPZ921103943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfc40ac5af68cb488cfc55422195fb4b70f2aa1cb22070937f3f57be48df8cde. 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/JPZ921009176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e42da351cd9483f40a7f1fffb63fe578040b2cf8773983c28ef3a72786634ce. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/JPZ921009169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89dc7479ba1455ccdcf4fd0cccd075e1cf32e6150ed89212396c44cc518c1862. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/JPZ921009171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x668088b241c97925f8d8150279958393acf778a8272722fdda7b7ff5ca9a34dc. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/JPZ921009173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6071b64d627922bf83b0338eb0a4495bca7b65d6862347a619637c81279e2dc. 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/JPZ921009162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4a7395f46dd7204c9c9b84d25bf737bb7127da099393f4216483b7b1ed2a1e0. 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/JPZ921009163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb8bcbb5840cd9488eb6b671b00f784f87b34362f2418c1030728e1fce732a41. 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/JPZ921009166.
Free Soul origami PRODUCTIONS : Mellow Mellow Right On
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e42da351cd9483f40a7f1fffb63fe578040b2cf8773983c28ef3a72786634ce. 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/JPZ921009169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27bb1a04d9dc184e0a5a4c2bba168d109a6717da43a957b855d12d9e26b6202a. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/JPZ921000314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x887b8496559bb92133cad29e18ffc827fa464da7ed13e12c9c604083a4d6d4ac. 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/JPZ920706427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97d47e71a679525d3cd338e3d40d5b18e500e0d13718c44a07778c0e1bba9b09. 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/JPZ920802014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75a2683b3664ae0fef8b498fc5740aaef78f28f9fb2fe104fd7a9306da816eb3. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/JPZ920805863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e4411fa299b27876e7ce551290a558035fa83450e1fe5f744151e3ea4789d43. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/JPZ920903153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc04ad2e9d7f2fd20310958ff37d3d145081319521b2e29863a28d571f436778f. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/JPZ921000316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe74c4c674d42f5c9daacfee6cec4e5aaafe539190a2ddf947de4fca070b73d34. 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/JPZ920903157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e6c7bcfd389474ab016673e24615e8373dec0c9e85a4dac849abecbd949d78b. 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/JPZ921103943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff25b8964ea89963d359a10e6d4b28d182dc7723b91fd51288a4d76cce24f145. 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/JPZ920903160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4a7395f46dd7204c9c9b84d25bf737bb7127da099393f4216483b7b1ed2a1e0. 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/JPZ921009163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43a656ebebbf5b3b282189c2f97c4d939cb5efb95aa45a6100bf1f6cd8bc7329. 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/JPZ920802018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97ce1baeacb8626d4bfd3f3fffeafa6edd1c27768f28d87502187692013630dd. 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/JPZ921103958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed9a05c34971c4697c311f30a399eff9b7ae1e42fd382598064c4ab29dc9eb3f. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/JPZ921009168.
origami PRODUCTIONS 5th Anniversary Special Disc 2007-2012
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad28f8fce2e7f444b454a6c9220bbb683b155aceb39f3fcd6f3659e428c2b625. 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/JPZ920908067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27bb1a04d9dc184e0a5a4c2bba168d109a6717da43a957b855d12d9e26b6202a. Chain 2 (Bitcoin): anchored in block 960157 (2026-07-29T22:12:10Z), 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/JPZ921000314.
A COFFEE SHOP AROUND THE CORNER 〜origami PRODUCTIONS × OBSCURA COFFEE ROASTERS〜
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf345325e65d37bdfb0f7c2f696780d01b14816f7d5a286b6d0ed8cd0bd088601. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/JPZ921103948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1e949947d073c86a62bb166b357216c25d6c17325241b498767feaf849099f4. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/JPZ920707960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ae402a2868ac1d78a2c40bd22c4575f70cdae5900703d3fd30b9fd2adaba9bf. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/JPZ921508628.
Lo-Fi Hip Hop, Soul from origami PRODUCTIONS -Pray for Australia-
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0646f51a6c05888d1eb6e8ba634cc958748adf5e9161940a70b2de03cfd11647. Chain 2 (Bitcoin): anchored in block 960456 (2026-07-31T19:53:57Z), 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/JPZ922000668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97d47e71a679525d3cd338e3d40d5b18e500e0d13718c44a07778c0e1bba9b09. 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/JPZ920802014.