Raban may refer to: Music and culture • Raban (drum), a traditional single-headed drum mainly used in Sri Lanka, particularly in ritual ceremonies and Sinhalese folk music ⸻ Toponymy and history
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 0x50a9dc14b7569e2b1363028d8eef4a15ca6367331b10d8fa1a9e15817f7b1858. 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/591a017b-a5d6-47ba-a5f4-88ac6347c459.json and https://artists.proofprofile.net/proofs/artist/591a017b-a5d6-47ba-a5f4-88ac6347c459.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 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 0x133c82a009b2b29c7d59591ea2022a311e07b4c2e7b7bf4c4688885cc0463d27. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/DELJ81768985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26b1be0bf4dffd1e607cfc0c35d96042748f64658abf78fc6549fe2be1cb4afb. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/DELJ81768986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc419fff3316b13269cc9f3f63b00a6ed4f31574166d6a76455b08c4cee79ac1. Chain 2 (Bitcoin): anchored in block 958817 (2026-07-20T03:52:09Z), 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/DELJ81768987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd3038aadeac45da38f89122d0ec07be4078cc903bed73bd74521239b8bc1f9c. 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/NL1AP2015250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcae412cb5cd3489d463426f2c4703f5e746c0fda935ca2cb53bbe8a8f779d5ed. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/NL1AP2015252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d8edf0686cfac46a6142323dc5a6aba3ef51a886e710452a2f97ede25854df3. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/NL1AP2015254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00d8a28d905338346a7ba108b93a3b1256c828bc4ce52a39a626d615899b9820. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T01:47:42Z), 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/NL1AP2015255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01123cee06b18fe11ae74bd565fb4a4b7a1cc03c6d4efe1b0d88bbb136fd33b6. 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/CACWV2239440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f2cd2fd5bad81a07638ac683cc47aff7593ca8536e050866097efbbb831ff94. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/CACWV2280910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeba892ca1f63bdda93d54acb943d5b597fb81174b77d499e2bfca2ee6be39666. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/QZRP42206361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d015f5d7c4b7d058923a22e38b9e0a27fce0bb1dd584f7ae9d71ed0d068b85c. Chain 2 (Bitcoin): anchored in block 958493 (2026-07-18T04:34:53Z), 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/QZRP42206362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcde1a4bbd9a1ab462e0a71c3cd7819adf2b70ceb80d327d3f970a21c246f8e09. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZRP42206363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0568c6c45cca35b8c3e2dea944e659cc08252a08f78f655a64491473d7404130. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T21:24:46Z), 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/QZTB52337675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4f58b663742f53846794383c60869c052b3b5fd9545da90a3c06d1f170e394f. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/QZTBC2367154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ff2df527d0a18da1ac803a8ef4d272215bcc7949c0669435fda4f1547de364d. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZTBA2381672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9de579071c91ca41fdc8e1b43b387f215e77d251be038594574add827273cbef. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/QZPLS2355044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca6121e4b7b0ea5bc309f5a0f25db0638865d4c80ff8415bebae8b5e448d1237. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/QZRP42398691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaab9104178c85a4e9dbceee0d9b219be31ef4764204c99112e004751aee99ee0. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/QZTAU2365825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd44b927d85e43a429225478010a42de9c12a21a831aee12c55b9947fb9599b06. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZTBE2370397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8524c031e5e0be8c4e30349e120c8df81e1712f61558d623782814e38c0425e7. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZWFG2302183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0568c6c45cca35b8c3e2dea944e659cc08252a08f78f655a64491473d7404130. Chain 2 (Bitcoin): anchored in block 958878 (2026-07-20T12:32:15Z), 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/QZTB52337675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9cddeca58cd64f751305b4cc864b160ecc0586bf2868ce83ccb23db5679198b. 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/US3DF2535462.