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 0xf31f91d88e8bf96f4a76ee9d910af1870fda430ca8a71ab62e8700e04ddb84ad. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5237c5e5-0efe-4769-8bbd-ad82598342b4.json and https://artists.proofprofile.net/proofs/artist/5237c5e5-0efe-4769-8bbd-ad82598342b4.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 0x85f45be7f4f43c4278bcc0f1256b9c98e3ff2f895563134aa7372b2baffb87bf. 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/ARTWQ1300722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc0321ee2a95260841d0daf7d0f35cf6e53ad202a34a86ab49f7a08c2895e8b8. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USANG2029081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9bc26dac4e10268b586b297793d9177fabac086e494cee0a0bbd3b09738e954. 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/ES71G1911966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d23ebf55e50faa1d16d2fd337ba32a4778762628066b3454d7896e7b44df99c. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/ES71G1911968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad89fdb2c5cea3e837ae0928de708137403c8176f86e64b02464cae52b0a447c. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/ES71G1911969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x697e880fbf540e80b87cb7627e7a83e5b9652ba4e73ba0435949f6a6b3007d2e. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/ES71G1911970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x321e4bfe21eaa51526059954c58ab4e6901a3e1433721bf7a5da7bfcd2c4ad2e. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/ES71G1911971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9577fecf1d3e614899f1afe19bcea3b43116603c907ebb656c62b84029184f82. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/ES71G1913089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff43deb3c080aea715f0eb6fb4061f81d921d0301fea40d7988ec7296ccec45e. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/ES71G1913094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaa0a45cea0f0b955dfc53ba07e54d1eb6c0c74c64f5823b6d14a7ab0665d136. Chain 2 (Bitcoin): anchored in block 958706 (2026-07-19T08:50:34Z), 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/ES71G1913095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8a3040eeb62139baea4dd62fd091d9ba8ec6b1ffdb1bb23d8cd85db54b1f1b2. 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/ES71G1913096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90699f07e11f76057f151870d3dc196facf6b8bbe2e292968643b45a6b73c97e. 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/ES71G1913098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd51b8352b6188e49c89668038fdbcfe799982f052fcc1bd29736e36dedbc7eb. Chain 2 (Bitcoin): anchored in block 958722 (2026-07-19T11:03:50Z), 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/ES71G1913099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb388664082ec7f8df0eb5d3b5a9d298a193b8a962744d92dc0e3896eafc5c0bf. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/CH6541663806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadb7dd72b150eca17ce71c047368f6d810805a77531aef08a0c6087e88f19cfb. 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/ARHXW1900643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb388664082ec7f8df0eb5d3b5a9d298a193b8a962744d92dc0e3896eafc5c0bf. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/CH6541663806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e6cd32b3ed303e98147309add4b9665766278e75057efe8d8f4039272bf1e7d. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/CH6542093775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3101559db8ed4ac503ef521dcaf8ddcb3a9b3da88b138f791f0c25a805c4f78. 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/CH6542140419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf27fdb5da2db357b0786eb19b1d9d3ecdd3d3c05f16c41dbea2ddfeb71fae5e. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/CH6542140421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2172fb987cf7779cf5de808a07be57437fcec5b000f42d19dbc1b71a0e70444e. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/CH6542140414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86652cc3b11b59d03afd0f6fce7b42926b684854cd3a513a0461bbf8ba4ec8f7. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:42:55Z), 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/CH6542140422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9107f99224dc261f4f8fda881ab7a5a128d87d559a59f8b2a7468b9b39197f7. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/CH6542140416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e75b3663b4883a946e94711a5bb7fd203109e658095e68b97214408b5742883. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T02:28:59Z), 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/ARJYL2100003.
No Me Enseñaste / Disfruto / Sal De Mi Vida / Nada Es Para Siempre
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cd40e1e948a21a1725d7a3fd945c58b8d05bf703f89e0cd1bf4638f5c978b5c. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/ARJYL2200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc64c45f740dea8eff5ed0341ffb811eefbea1d8c5248716f51e48a3ac3b360c3. Chain 2 (Bitcoin): anchored in block 958891 (2026-07-20T16:06:07Z), 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/ARJYL2200006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0869dd42b8ac70e1dba789cfb2d662aa0289867716461c3d7cf4deacae155ec2. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/ARJYL2200008.
A Punto Caramelo / Mi Segunda Vida / A traves del Vaso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb41e45aeb2b956ddd8052870195e04294ae83ac97ec2b06d3eb43adb1360df89. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/ARJYL2300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef4fab5e7f93f19d008de7a724aa683e907ecf2fd2b442abeeb5918daeeac673. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/ARJYL2300009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf01bfbc8f3a443dfa07025a48f9b2ec3d16debe4d90680ee687918a60b68d087. Chain 2 (Bitcoin): anchored in block 958889 (2026-07-20T16:06:44Z), 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/CH6542385355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7746a036f18c784363cdca9e51d2897613bfa9d1327f87ee95c73b734a3a7100. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/ARJYL2400002.
Por Eso Ella Está Conmigo / Demasiado Amor / Confesión
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94bffaa06b1aed5594e5fdeb0f99e39eca9f583b318d0c2851a289be325dbbc1. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T02:11:18Z), 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/ARJYL2400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x250807f966b2f7b3c28ea2cb2e9fd1248db6ac155e7b66820c99f216a44df498. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/ARJYL2400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75c0173c9d793dcd623d68ca6991b071cd9c31e65423086c80acd16150544928. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/ARJYL2400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x353ffaea53ca3b2ce88992ff95b7f09696c7253082e8f18652a6d50d389c7de3. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/ARJYL2400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1318524a4dcfe4ee229d09eaca45597e3a5355e6e7ccb8d7abe1e10088724e96. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/ARJYL2400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x215315c70fa0011456693f7ea4ad0aabf4b127c8b17721132cfa53e0f393163d. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/AR5UH2401524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2aeaa2a3194bff8971920eddbd703e9d281796c4930af482e4b241fa2d2127ea. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/AR5UH2401525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd634335d144f5e1187978a276202e8503db4c7b603a47f18e176288b3d31272b. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZTBF2548510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5704b591c9888158179212e6c382267894dbe84a686955b9d4876a0dcbe600b7. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZZ782551883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dc2875bba6689c46304b4fb2ad3eec525c95c41e83ab9a412e53f252cf9ed28. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZHNA2165137.