Cristal may refer to: Cristal Global, chemical company Cristal (wine), a brand of champagne Cristal (aguardiente), brands of aguardiente Cristal (1985), a Venezuelan telenovela Cristal (2006), a
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 0x3019e4bc9499e978907873b3af6f97c93fe6a72410e153e1a19fa3208ca83219. 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/64315589-9b18-4f5c-be8d-b33383a9731c.json and https://artists.proofprofile.net/proofs/artist/64315589-9b18-4f5c-be8d-b33383a9731c.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 0xa785e8c5ec13cbd595d8108bb0d2ea71a88fca5c848269c23963066d09026cc1. 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/BC14H2200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0d5a7e2a3d1882a66f03a8b114886e8e7d70e5acc843395ebc637d61cd90191. 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/BC14H2300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad6a55c0294eb9bce4be6055afb4d5885950564e4259220cfb6484770488310a. 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/BC14H2200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaea623243c8a7359998dc10a1fe489a37760eea87e7c0e05e053f96da5a42475. 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/BX8UA2100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1e5261323e1a1757130abdefe17b401284df210a3500771dacd74e0f8d892e9. 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/BX8UA2000007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8cc827db1a0e830ed3fd0cae55e5591af1cd20f13461bc95af91cbb2cd154e7. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/BX8UA2000004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1242778252a9a32b92266c58b8778aa5caeaacb99307ef3c0afd410ad7fc1ec. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/BXSSW2400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe898ed7e3fb3e6adad970df501e864a55274e4ba2d409508f522b0c555b0695f. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/BXSSW2400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8874ec520e2b10791786631cd5f76b66b66fdcb8532f83dcb75136ef18b6654. 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/BXSSW2400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e7ba5b8971d0c4a6769eba2d15a393e82f8f9fbc4a0d21852600b7987f1d34f. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/BXSSW2400002.
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 0x9e3a6c23f2baa89fc6a828a79b029fb7d8b61383c76ea0971e766c44ae39aaaf. Chain 2 (Bitcoin): anchored in block 960309 (2026-07-30T20:35:49Z), 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/BXSSW2400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54c2e0d5a6843dc3a66c1ddde31d10f0ac3cfa33d0bb3256b1f0b85ffc6618ec. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/BXSSW2400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56adaff0ddfe94862cbb05939f2ee1e6275d81c518c0ecac90460b4be8a8bd64. 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/BX8UA2100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d133e57c77ded2d2549031ac2649b4f72a6608b80a0396e20c25b176252353b. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/BX8UA2100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01ccdadd8ea8373c0ad67a7dfefcbb9d4a25d347ccde169222f72c01780b27db. 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/BX8UA2100008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5aab3ad523c50e5b6abfb5d0c81ad982799389c1c8d5998ce84b8a4ae423e582. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/BX8UA2100006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ba13b6b06ce1f2e27843daddddef5be15f358bf0255df1082bf67b7ba6c5deb. 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/BX8UA2100007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8eb0ad5a43b51f1d58ab89e2445f992925341a285eb803f107526659eccb7eda. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/BX8UA2100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bec9f864c0d8fd5a02eef971e530b9da1c3ad7a230ee80aab094232454a2725. Chain 2 (Bitcoin): anchored in block 960111 (2026-07-29T13:21:01Z), 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/BX8UA2100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee5bcd5077254ba19088a86d48b28cbc3ade616efc8f745f3af4d411f280a4e0. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/BC14H2300006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde15bf21932647c6b83caf817d097afeee16094844542a0d4389a7a8eccb37db. 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/BC14H2300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ddd60b6d5cd0c9217beecc9b5cb965ddc1f24402f0cb391e66f5fffa5107d2d. 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/BX3FM2300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe79418c631ce885313802ae74da19ce00eb26d595d75e616c697eb3a996ea6e8. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/BX3EP2200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21b2322f10684030abad433141e7b37038fa94ec74b5ec510c60466d35e2cbc0. 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/ISRCB2200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0673285035d6336c80d386ae71f5bd454daa272f3827517b19af2f70a5dd8e49. 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/BR9082000010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11be323abffafc5a23419b73f1a7c822e88b93b1a1f7126c671e51dd07ed2208. 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/BX8UA2000002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96f2e93596eeb60c2ac39686b6c75c008e032f424de5a0c9d64282d189df7558. 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/BX8UA1900009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52d8533e5ec580100733c709129f97517dd5a8baaf1c381d3681d0f9840728d4. 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/BX8UA1900006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f5ca9f99539ff8cd537f3febfd5fec127513f4d639aee42708695cce2854758. 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/QZHZ52141500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9615b6dba21e005e87864951ca2da9fffed50fb4cee73b818a46a60b4eb4103. 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/BKP7O2400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3ca9edf8c1c75c75fc5d56a0ce89d353302dcfd38f2bc1a2d5f3c91f02a1232. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/BC5LB2200102.