thumb|220x124px | right Dang Show is an Iranian music band formed in 2007 by two brothers: Taha Parsa, and Shaya Shoja. According to Taha Parsa, they consider their genre to be called “New Age Folkl
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 0x16cbe7af435efc3053d1c4bf68e71416fbbd0ce8bb1f825c70a48f5bbfdbb9b5. 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/f7bde098-7c6a-4537-8551-9535f79b8874.json and https://artists.proofprofile.net/proofs/artist/f7bde098-7c6a-4537-8551-9535f79b8874.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 0xdfbf7b997160885a5e3257c79b8b22021e67f2526cf4c2587ca01d2a860b9caa. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/QM4TW2226940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72c6d1fe0ed94ef09334e213fb20c1a57135c9091a0b52675a22c195aa5c218a. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QM7281888931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55eabf3b56973d01c15e693a917c540cd46493ff452c0c434191dd35b4b1aa75. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/QM7281888932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8eff5cddf3492ec438eb6af57e1121674cbbf8b71060eceeb9bece2bc06f4ec. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/DEA371901514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7f07e84e0a20ee8f6af023ac9efbc266dc8b72c24b2b7dcaae9db89eb4e38fc. 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/QMFME2394629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc704879231b12d832a3874341469db39d5154195e252af28e4de5737ae65a26f. Chain 2 (Bitcoin): anchored in block 957735 (2026-07-12T17:47:43Z), 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/QMFME2394635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x905a3f1d1fe16ff01d1478c9483611550b017fb9c94cf2aae1cb29d3079475a0. Chain 2 (Bitcoin): anchored in block 958355 (2026-07-17T03:11:50Z), 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/USHM91485521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a7ec2dff124d481d7fe5b801e91f1932b03ddb70b344420835585ff8e4c769d. Chain 2 (Bitcoin): anchored in block 958947 (2026-07-21T00:53:33Z), 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/USHM91485525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87b26cba05cd44f39e305430863ff067f4a6998b51063feafda1148c208f5024. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/QM6MZ1854080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd77416b722dd14ad0119846f5c6a60cdcfca00a7a24ab9defe492af1e4ac7c71. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/QZNWX2323830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb53bb2c25154e3f67a08aa2d68122b10516a3a70193d8d92f5a47b177b628197. Chain 2 (Bitcoin): anchored in block 959065 (2026-07-21T22:00:50Z), 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/QZTB62428419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e25ef0bfbe7e86b312a331340301e58a8579382171598656e900f3e02c460c0. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/QZES62589182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb53bb2c25154e3f67a08aa2d68122b10516a3a70193d8d92f5a47b177b628197. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/QZTB62428419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d7055468695f7a736518815543ab2556a6b2049634a28fd3354f80fee00f146. 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/QZES62589181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad5b155a319ce8dc81337aa392ba73e4b37f3aea9c6a41352c533a8aa4cc0ed1. 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/QZES62589180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa777a0dae072f5d5bb62e5bc16a9ed17d7c343100d9e7ec835307781b17a3ba3. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/QZRP52412724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0242e81665a06b2e974c5197b3c733c656237ea1d3ec112ad433cd5cd396633d. 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/QM6MZ1923466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce12d055890371d78cf99b2519a3c28f4e36790b64b778d717e12ba61928e143. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/QZWFH2456444.