Mari may refer to: Places Mari, Syria, an ancient Semitic city-state Mari, Paraíba, Brazil, a city Mari, Cyprus, a village Mari, Greece, a village, site of Marius, an ancient Greek town Mari, Iran (d
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 0xf1c581bc0af88f554aa0b188f0e461dae45b949e5d3e6c00895e2f8b753b729d. 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/ec2c3661-6708-49bd-954d-fbf0b031320e.json and https://artists.proofprofile.net/proofs/artist/ec2c3661-6708-49bd-954d-fbf0b031320e.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 0xd9854abaecb7f553f82c27f4e6625f942cf7de647624ce7c56525ec2cb33b307. Chain 2 (Bitcoin): anchored in block 959052 (2026-07-21T21:16:06Z), 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/TCJPK2074214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad84e908638831132c866efb6be8ae9405011ba0fdc7db31ce1c8b691bde228e. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/TCJPP2104428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa09f53248365ba0ec1ab4ffeb296b666c3105992a841f9397b989ca9847d26c9. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T19:46:14Z), 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/TCJPV2361016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9030d188d3983e8a78777b476b156d61af104bdf043bb5c40a9ca937174ffa5f. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/TCJPV2361027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf06941954b37fcce89c9a2073689f0c38bfcdc51e0833c39af9905ef0148d70c. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T20:02:06Z), 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/TCJPV2361022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ad642df7033b72b5b61deb33d36a315713c9da2536de4c7c21cfbc62432fa6c. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/FRX872584786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc610715b94fadde37638137440f54af70059d99dd50f6127471a3e05084b50e0. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T15:19:27Z), 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/DGA052507973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5802e72b9d9fcbd3035d36523cf5022e9efd8d15009d72dd3c9f2047db51b9ca. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/DGA052507975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddab0325925c780f47cbfb24bf2625f55797c8a0c8662a998e9d643d29629ba0. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/JPWP02400206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7276f3d194be854664bd162da6a30a80da1cdf6c9e8094a7b067ad95e53cf5da. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/TCJPZ2434278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb6f20990add5f9c56a4816710f3b71cc531c153a9ea4e4ed97c9b9d9989f886. 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/JPX602300006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddab0325925c780f47cbfb24bf2625f55797c8a0c8662a998e9d643d29629ba0. 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/JPWP02400206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2c2b2cc99d103325e45f9c31203ac2c754d67507a8f997bc6192af6a0d95198. 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/TCJPZ2497303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ba735fff4646576facb16c468e8ee0f2cd109dfa2e0e70b8c840ff0d4830c2e. 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/JPWP02201038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ba735fff4646576facb16c468e8ee0f2cd109dfa2e0e70b8c840ff0d4830c2e. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/JPWP02201038.