thumb|upright=1.3|Main jade producing countries Jade is an umbrella term for two different types of decorative rocks used for jewelry or ornaments. Jade is often referred to by either of two differen
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 0xf58534aa47278dafc6aa66bd6710a2f7e42fffea68622efda2d67249f47f2cc6. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ce20abf4-d83e-41d9-9578-a1d5f239095b.json and https://artists.proofprofile.net/proofs/artist/ce20abf4-d83e-41d9-9578-a1d5f239095b.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 0xa1620e2abd615cd69e7aa7ca331dfa38b668f5d7a14855c313383e39f005c528. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/USWB10104206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x280b476ba6f983edd6aef08fd4d96e4bd9cfc936847a64b71eb60c3c4eb836cf. 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/USWB10104207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dae828d38ca9bb4cc082d1863da5302fab4a080986f30c1a61a502bbaa3a341. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-16T00:40:35Z), 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/USWB10104209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaecb4387d0f4f24c1f73ddb078b50ae146602d5e2a37990c84792ffd96bdf3e0. 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/USWB10104210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa39459478706c8af1722af61254deef446ca4213d1fcbdfce4b81f5b0b4a1fec. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/USWB10104213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bbd4172003994e26b3930f97fd5fe34425be56a1af5b7f85347fcedad692645. 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/USWB19200013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe902be6dde61e992932abd9780456fae3ea56ce6b2ddb1748d3dc2625225c9ad. 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/USWB10104216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7634d09c6173130d98f90a4a2b1303ce561062d48439c652249114cda6e1e02c. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/USGI10100016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe96fe8ecc52286c3ac692b1f9269f4809c40d5d1992d3db37c201c0ddeda6199. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T17:55:21Z), 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/USGI10100017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb402250e3c1d65186caa3d8662fc4bdd69203aa8543203eea9b10f8efee41f58. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-21T09:01:46Z), 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/USGI10100020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc2f69193113e44f9895f92eff9c090af597edb22c9c9420b3d7ef2bce47f949. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T12:51:31Z), 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/USGI10100022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcede91de20adc1ec82cab9fbd373a151ac081c8fe8ffc647f2f4f689c63a1536. 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/USGI10100023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3e70e6bbfd616822045fc66d692beb70553faf48ec2ab480a76c8911a476133. 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/USWB11701946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x487622a7e1e5b3bef76dec98fa3f134358b1682bc58fa643fe9f20f268d706bb. 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/USWB11901424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x318ac2388618d1c99f74c3ec72dba5fb3a421b80fd79ac37ec93525ba796466c. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/USWB11901427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5333e05a24159c91d923ddf783ed565bfccda8e1cdb1744a5076f265ae7fbd65. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:20:16Z), 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/QZ5FN2205925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc390a329ddc4ed7b44ef84ad4dfd199bea718fdbd62e46684f24350a54e08d83. 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/USGI10100019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1de9520dc83b52c539af1bc17368619b558192a95ad246af6660f56918172f2c. 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/USWB11102132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8d73ea4a1c93e2dd456429407a1f8048e92f79ea60557a36232380e8d91241a. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-21T23:14:38Z), 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/USWB10104203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8d73ea4a1c93e2dd456429407a1f8048e92f79ea60557a36232380e8d91241a. 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/USWB10104203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x668284b5bbaca5444d579b78907eb4db5ec0ca1963ca58540a5fdf85cd05fe54. 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/USWB10104204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8d73ea4a1c93e2dd456429407a1f8048e92f79ea60557a36232380e8d91241a. 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/USWB10104203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62b17ef4ec0c5d191757e6430a53a0c5f3a86c3484bf08c9179fafafec720010. 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/USWB11100015.