Kristal, meaning "crystal" in several languages, may refer to: Kristal (name), a given name and a surname KRISTAL Audio Engine, a digital audio editor The Kristal, a video game See also Kristal
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 0xa2b7a3feb0809cd019300e1e0b914072f341868a6f6c4d8062adfb5941051784. 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/3ffba71e-b6dd-4a21-bc41-555f5f7e1fc9.json and https://artists.proofprofile.net/proofs/artist/3ffba71e-b6dd-4a21-bc41-555f5f7e1fc9.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 0x2028204730a6ff4252cab26c9520fe7f80fd5f88cf7f2ea3aeda5dc519264edc. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/MYUM70900691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3638dd6ed5618ab533521babf8e8a607c930ebb6659e68cfc00ef2c4fc1b04a. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/MYUM70901719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3773b5d5ec703444427330ca25f79ab1da51d4551deee002c9917d84af3e616. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/MYUM71000671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1634eb1cc4ef8cf7b14ed742a5e1982bd1a908a30c99909638f04db49fb1ea1. Chain 2 (Bitcoin): anchored in block 958673 (2026-07-19T05:38:28Z), 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/MYUM71000672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcace26644b7305a894dafc4c1a074727890068d8cccda8325ae0fe24ae71c9ba. Chain 2 (Bitcoin): anchored in block 958476 (2026-07-18T01:26:56Z), 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/MYUM71000673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa96b72c1a805f8f5765cb2f51cea1c243bf98faeb9676f49579ead0359676726. 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/MYUM71000674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f40717818fd1b59c504dd5fac617e7044a8195a857be6a4bae472adb1e15c62. 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/MYUM71000675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcc968531533d80cb35be105ad61d5869e810803b263091f8c2e8ea22b924975. 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/MYUM71000677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86544ef5cfd4fdce3b178af1766a53d5613d30134ae65c0e96fc1f63786535b7. 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/MYUM71000679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34a04b07833247e3ef3f27806ffed4feafd184344518c4f6cb2fdc227dd35c3e. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/MYUM71000680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00e3227dc2a054cfd6bbf159fe147108a406912f42182522f97fe7d56e5e83c0. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/MYUM71000681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65738ab584cdebe569b7a6ecd4e77af0f87b660ec707be0e32c4b07fd396b517. 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/MYUM71002322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e6a3ec277430473518bc9be3e9679aa84e5d2ad1ed5b7f63751e2a1b7c8cee9. 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/MYUM71002325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c40536f51e8b594f7319485a5ea5bb7d0fdc456b75d233590640e460433265b. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/MYUM71002327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d60411c61f72376ba9bcc83a72175a24043685c1d4edc49eb7cab6e085c1a3f. Chain 2 (Bitcoin): anchored in block 958667 (2026-07-19T05:04:54Z), 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/MYUM71000661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b17bd1f45fd8de78925ae942fbec65c1bd8e91895bf2ae3232b68b003d46845. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/MYUM71200007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b15d0f949f6784b557e2fa62911dab877297cae2430f0e7ff01db64146d5a23. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/MYUV70900816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67c720b84d24f8d1273ca06cc368fbd1780ce5ac50b6e0928676785437f8684d. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/MYUM71200018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f5a76933076aaed7de7244b9e8925616e6b2e1ba9586add7f6e4825b082c822. 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/MYUM71200020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68ed984f6d83c5914629bbffb62fcf1330ef1526ed982b55c723309c3525a4b4. Chain 2 (Bitcoin): anchored in block 958371 (2026-07-17T05:45:43Z), 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/MYUM71200024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc41fb37954baefeedea1c41a873694b68db7a39155bca4d45d3f41ef4a129ed. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T20:03:27Z), 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/MYUM71002319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81d21307b4061a65eaae3e6b1c4adec78f296e9f33c8e581366d84d22cd95da1. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/MYUM71001596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf3316746820dbb57ac47c384a3086ac441ef3ced01ea7892789c2ae182db8aa. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/MYUM70901697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2028204730a6ff4252cab26c9520fe7f80fd5f88cf7f2ea3aeda5dc519264edc. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/MYUM70900691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c39b5b89af41e4624c40784b7c0eef31ecdb65090cf77ff0dcd2811e39bef69. 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/MYUM71400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a4b77210045b3e544908c0d87ed7602d6af73167ad1668ffcb63edb06b336f6. Chain 2 (Bitcoin): anchored in block 958582 (2026-07-18T16:47:25Z), 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/MYUM70900450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba5c41995e0d32372c52e7890e606e86ee9cb86351135cb7a2e3b12a10d748f0. Chain 2 (Bitcoin): anchored in block 958422 (2026-07-17T13:35:31Z), 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/MYUM70900455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0650d5aade9322a747e591e468b7b482525582203c325bbef02e2dc3e03df6b. Chain 2 (Bitcoin): anchored in block 958087 (2026-07-15T02:56:49Z), 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/MYUM70900447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x235e666bd10a0aba47b256e1cb1be6db98ee128975cd93671f06f1937c376a9b. Chain 2 (Bitcoin): anchored in block 956859 (2026-07-06T01:42:12Z), 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/MYUM70901699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x904a14f2f72e9e4d74cd088c7898be05d5d4e83e1a55c4e60613d6b6302610e2. 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/MYVM11700041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86ba896c0bb70dd8dd9dcd38da250756b08b68246052a7486b27507347ac38ad. 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/MYVM12100104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadf4f8acbb5242d54dc1a3c93ea1fce59ed0e37f2a812666e96ed5559d89b242. 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/MYVM11400031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6491fb5c346ad9e99b39bc2f4d1b640472645e38113a2fb200b5ee6f97a088e. 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/MYUM70901840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd548df249166cdcf8343c6ccc3aeade00409439f18563c2dbe67f06b3e48051c. 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/MYUM70901850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63d3aaa22cb812c8efb36006494a49658c476d20c8f6671f9dd147c1d75546a2. 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/MYUM70901861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcace26644b7305a894dafc4c1a074727890068d8cccda8325ae0fe24ae71c9ba. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/MYUM71000673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x611aaa2fda8f2fd15720c556f9144bb53719dcae5fa2e2fed00c1c1c877cd6fe. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/MYUM70900007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13d246c47f004fd4c55e0c8269b68e443137f8bb9aff62556c0bd08eaae062e4. 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/MYUM70900022.