Sasso means stone in Italian. Notable people with the surname include: Ana Sasso (born c.1963), Croatian former beauty pageant contestant and model Cinzia Sasso (born 1956), Italian journalist Guidina
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 0x5d1e2e9953b061e0a6db2d169fd0d295bd5b220c0c97b2c05aa0e83616ec0ac6. 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/48fcbd7f-97cb-48f3-b9fe-2c58bcf44491.json and https://artists.proofprofile.net/proofs/artist/48fcbd7f-97cb-48f3-b9fe-2c58bcf44491.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 0x8f77a5920ce1973de33c283bc126d9fd47797fc5273b0287b8229d28cb91ded9. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/SE5751938305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe341153ddf22a4f11739831e337bf658ecec42394d80c25d059657919e13f782. 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/SE6131975271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bc7095e4cde6f5c68c68cf05457364036329647c2a05dcad0051eae70ba69bb. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/QM6P42099162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd84c9bee40c989d3728a7566399ea33fc21078b463861688dc8cf551c95020aa. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/FR9W12033210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8df5605092d9d04617b54fb410b94d531a6c73cea8934808d6fd97589fa8cfe4. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/FR9W12033212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61a51c4fbd1d28d5688f2d20e20600ae0b02308b76a9ae2fd57dbbfa7309b5c6. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/FR9W12127051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5206ca02b05c0ffcc1baad4af7b821e71998ab5a50c84f21662a6c7dc21e86e. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/FR1A92104097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd326a6ec348f453a229357ea208fdb5bbb354ed43103106839fc1d3585959fb7. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/FR9W12128989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e12c44b649d9b4632045da6dc97d5feed238dae8666bd78e7e029c6fe57984c. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/FR9W12119982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95f9f2a4315177434d8d723a7f7589747509ae37c5573333065cfb89d73179bd. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), 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/FR9W12108257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb84380e4d817611cc82dc70462f83a7b94c435419ef06e4fd7bf9ef37824df78. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/FR9W12119983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf249c26685102251b8838c07eefc6f4f5c5a89bd44cc262136aea3cc53c4974b. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T19:36:43Z), 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/FR9W12120799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8afc120bc367c20692efc9e53ebe7257daebede8c391d68a66ddb1f918557a4. 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/FR9W12119985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8e9820ed8171faabc0cd331ae0fa821fd3bfce009e765d1727c1a96be04503b. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/FR9W12119987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b419f7a1bf198fbc2083f52ecf19b2dd62d27235b05dd28001052b1b01f750f. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:50:47Z), 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/FR9W12119992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0467908fd1bd9c23735fcecd962be926baf855acd978c153f27547fd217c99e. Chain 2 (Bitcoin): anchored in block 958407 (2026-07-17T12:08:48Z), 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/FR9W12119989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab66bc0fc8c9b7dfc4628939dd9e019e812ac9514e0434dd98666c1a41bddce0. 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/FR9W12119984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x866af488e6e47520fe7cffe725f4d3e53fb1ad8551dbc1b4e1efa575179b42aa. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/FR9W12205728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ca2de540df26a1ae3b502a7234c2e2d2708ed203312fbc42a0b13db49317999. 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/FR9W12224925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8aa5f6946ab6bd821f9663c4dc2323f7b67b14026644c1cf2e624019ef558ede. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T03:24:09Z), 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/FR9W12226365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x359e40b53898519e5ae968501d719d87ac84a906755916252ce0de17e4a394d0. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/FR9W12224921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a13ff140422bc91cd390d1d6200e2cef7ec0144fb4221b3b64bbf8c3f8d062f. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/DGA0R2487210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ce59d524827ab40c0fa52d46d7fefdeee81b0cd3a655c9a075b13c340eb3d14. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/DGA0R2487215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25cd9c60add11751aeadd9b03316769f0ac4e1940b24ee2203d0c45f4eb25a15. Chain 2 (Bitcoin): anchored in block 957801 (2026-07-13T04:17:08Z), 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/DGA0R2487214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa71c1de6d5ab7aa70c8a40e4b61c64f7da803685cb659ddde431808ebe6d590b. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T03:03:28Z), 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/DGA0R2487206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70c46902cdedd6159cb2213d3c3131129ce9b26d668b81009a169da29325c6a0. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/DGA0R2487207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe29515fb34be3e80a57c8b9473fdb7ae9b83160264fa862b38292fea5675a4e8. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T02:05:58Z), 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/DGA0R2487208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5144ad1883ba8ffe72ac41b5f249cff44077db59b2a9026599fc2bfa30f0aba. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), 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/DGA0R2487197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53d70102e893930e4dcba0083a88e60d9430f35822ddb2aaca67632b239ba3e9. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/DGA0R2487209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba9db9488ac2f68e289a1659602b17fa8429febaabc53bdababbc95d5bfbfebd. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/DGA0R2487198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a13ff140422bc91cd390d1d6200e2cef7ec0144fb4221b3b64bbf8c3f8d062f. 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/DGA0R2487210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefa18851be4cf024cfc3f3fceee400bd7d33ba100efd89fc2e792275ab92d98d. Chain 2 (Bitcoin): anchored in block 957867 (2026-07-13T14:55:20Z), 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/DGA0R2487199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35fd40059983ac2356fec51a61bf4240faa71c61cf744ea50a19f2464f9223b1. 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/DGA0R2487211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e689f767e7e7db16524b6790c80b451d7c9ef297c31945e9961682fbe44948d. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:10:59Z), 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/DGA0R2487200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24a4606a66884ef691e4beef0fe3bef7d92a3d75cd4308baa3e85bf9e19c244e. 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/DGA0R2487212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86b94e6c92e50a8f807f100a5a7e7fc862f065d31d000623b6d1d8f5172364e2. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T01:54:19Z), 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/DGA0R2487201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac0cdf79327b8dc2e1c8a9a269df964ea2e8e6b497c5ac46525d62bac16bd20a. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T01:39:00Z), 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/DGA0R2487202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8590dc703eba8807b27facf98a4028eed45fd76e85781af536d0d66730d89e62. Chain 2 (Bitcoin): anchored in block 958351 (2026-07-17T02:38:05Z), 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/DGA0R2487213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25cd9c60add11751aeadd9b03316769f0ac4e1940b24ee2203d0c45f4eb25a15. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/DGA0R2487214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x652d910468bc846773d49c2c541dc3b99f859dfa0c03c4ab56b0233bbc40ca66. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:28:15Z), 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/DGA0R2487203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92abf52f80bc256615de806c6de994d41d700cf105347f2b2dd8efce26b8ad4a. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T10:55:48Z), 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/DGA0R2487204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ce59d524827ab40c0fa52d46d7fefdeee81b0cd3a655c9a075b13c340eb3d14. Chain 2 (Bitcoin): anchored in block 958622 (2026-07-18T22:58:55Z), 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/DGA0R2487215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6c907b5153cbf2c8791d62c8854654a88cfcb0f2669bada2ce92ddf4964d29b. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T03:58:16Z), 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/DGA0R2487205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x521e1c4395fb51efe1818f05c41ecaf1d08fe958c473005a6de0ee1ad9fdf6bf. 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/DGA072173734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2625f8f8876bbf6d4fb5471120eb9204542d1c16d9063bbcb9bc1d56bcd58e62. 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/FRUM72101789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bd90f21d3a44c6dd3f9673927345082e8e31c0dcef2ebea711a9fa4c68b383e. 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/FR9W12204823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bd90f21d3a44c6dd3f9673927345082e8e31c0dcef2ebea711a9fa4c68b383e. 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/FR9W12204823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7034c4edafdc588d6ce399b21e6a5e997b677544de8be88426665d9570d125c1. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ITDJ72200019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2caf036102fb934377249a3ecf6ba2d396b617d079b8a798faaee6cfe332c926. 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/NL4NL2145982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd323f142ca67070c184b244d79d1673e2a4052f8cebd5a2f9fae827ef35bb695. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/FRX852100840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61a51c4fbd1d28d5688f2d20e20600ae0b02308b76a9ae2fd57dbbfa7309b5c6. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/FR9W12127051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb70ec6ac181e402437e6a594cadb8acda4801d29c8ab3950db2dfc053236e2b. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/QZFZ42032886.
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