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 0x977eff70aa0369e385a5d60a7847e02b14f8eb7dec3254ee67aeccec4bd4b6c4. 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/c60273eb-929e-477c-8fd2-de97433d351b.json and https://artists.proofprofile.net/proofs/artist/c60273eb-929e-477c-8fd2-de97433d351b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
เสียงพิณถิ่นภูไท - Folk Music of Northern Thailand, Vol. 3
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 0xf21633cfd57837314ec9a24cd1526cae7a4e148dae3ef5b8840d7e0a28d7c52d. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/FR96X1867605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43b2f3631e5f088094b61d72d3c2cf813fcb1b97e0d86a01cb4c43fc616c4aa4. 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/FR96X1867607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93b115a13441ceef6570c6369eb3897be63279e8bcd89e50aa9e492190e822e6. 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/FR96X1867609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b02ae438fb9b4740bfe7689269fbaceac33825b97f9379f17d7d7920f8b7f60. 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/FR96X1867610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81884c899d0e661e94fb778153b05031a23894ba81df0cdf9da8c17f54ed38ce. 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/FR96X1867611.
เดี่ยวพิณ & ซอ - Folk Music of E-San E-San Harp & E-San fiddle, Vol. 6
ซอลำตังหวาย (อีสานกลาง) - Saw Lum Tung Wai
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8d7ad3bfb099b66fcbc6569c1f03c6d2ed94f85aaa656841e6d44cbd352b1f9. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T23:33:41Z), 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/FR96X1891170.
มโหรีอีสาน เมดเลย์ พิณแห่ - Folk Music of E - San Phin Medley, Vol, 7
ชุด อมตะโปงลาง 2 - Folk Music of Northeastern Thailand, Vol. 13
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ea9733441b905666dce873637c0e728e497ecddff20aa4d68d5440e327e04ca. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/FR96X1891194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb449a929e4aa67ac88c5cca5fb7aae7e3c3d315bbc5fc2eb47ab5d66ffc6d4e. 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/FR96X1891196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98a9de5674079715bc36294d759c53bb3e9e37f74bec279c906c8907c3f985e0. 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/FR96X1891198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1191e36452895d10a9f4cef4cedead569289c7dfabae0d9315c296ec8d1fabc9. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/FR96X1891201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa90a65524090c92d9b60a0c26ada60f47425690ba3033652bd1b75f3caacafb6. 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/FR96X1891202.
โปงลาง เมดเล่ย์ - Folk Music of Northeastern Thailand, Vol. 10
มโหรีอีสาน ชุด พิณ & ซอแห่ - Folk Music of E - San Phin Saw Medley, Vol. 9
มโหรีอีสาน เมดเลย์แคนแห่ - Folk Music of E - San Khaen Medley, Vol. 8
อมตะโปงลางอีสาน 1 - Folk Music of Northeastern, Vol. 12
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65c05bac4b54da4e0381dfb147797359c00b32d8cd09839591134278270e565b. 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/FR96X1891180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fd498b186e5968e84ef4cc74dbe52daacb646cf3048a18db522b2f948e2cf6e. Chain 2 (Bitcoin): anchored in block 959069 (2026-07-22T01:00:13Z), 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/FR96X1891181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x407b81875418de9c946d972a839d8978813aa4f70e47b75fe6c944982ad2c0c4. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T04:09:45Z), 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/FR96X1891182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15bab2d7b8de35a02f61919d9ea73681f278cddf3f5cf1324e4b2f74fb5bad7d. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/FR96X1891183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86a0b1036277e7e9382c705df3ab62c0e97ac36c2ecd3c355e4eb509d114f856. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/FR96X1891184.
นกเขาบินข้ามทุ่ง - Nok Kao Bin Kam Toung
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a727cc54a97389dee9167585f06ede4485fc76653ae42e7248aea188ec5592f. Chain 2 (Bitcoin): anchored in block 956404 (2026-07-17T03:52:05Z), 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/FR96X1891185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4109feb8d2611fd73ed36fa9bd8c6a49ead775a7cba06545621e05b302b6e8ad. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/FR96X1891187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f94078fe93e26e4d6f31a0e0d45416fb1a5a717d1a9c3a50c50fecc7fc8a421. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/FR96X1891188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6744db92b6f8e9580cb63a73a87afd51688204b2ac4afea9a4deb1e472c59d66. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/FR96X1891189.