thumb|Teamsters, armed with pipes, riot in a clash with police in the Minneapolis Teamsters Strike of 1934 during the Great Depression. thumb|Anti-Sarkozy rioters wearing scarves to conceal their id
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 0xa8bf8ee86834e13054c9c055e262ebc34a7b8780232120454ce7e964899b9a54. 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/57a93d62-2aca-4d75-94b6-e18477cb2df3.json and https://artists.proofprofile.net/proofs/artist/57a93d62-2aca-4d75-94b6-e18477cb2df3.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 0x06d25cbf7a399492cac28d4c611a3eb2a5c1ed6e7845f87f1404c65e8d10bb43. 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/USLZJ1517680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x967c0086a7ff675b3f48596c218496b32adad88621c5e6e05527c28d49dd5a72. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T08:56:51Z), 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/USLZJ1524559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8664105615edb213be878206b07b547f91fb5079cc284e0a9591ddf6cc3339bc. 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/QMSNZ1506637.
LSAR (feat. Armanni Reign) - Original Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bb30833647d2d08e42f4a72c81d09e5ddcbfd9770eb87362f3efce8645412c5. 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/USLZJ1544695.
Love Song (feat. SPLITBREED, LAZER WHIP) - Single
Love Song (feat. Splitbreed & Lazer Whip)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd21369c1297b99d9daed00de331a697d04f272158f4646d6a5ef146bb5c6e32. 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/USA2P1551590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19419db89f9713eb7eaf72639406dea661e3842eea5e009cd10c4217171df806. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/QMSNZ1600674.
LSAR (feat. Armanni Reign) - JumoDaddy Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d70f7e86c60b98b17b6b3a4ccc56127e0d933226d83b9f8f4cbb330fa921419. 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/USLZJ1639320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1da18185cf4160c12b566bd0c070bae4f377d54bf46175ef542e9311f395ead1. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/TCACZ1788317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1da18185cf4160c12b566bd0c070bae4f377d54bf46175ef542e9311f395ead1. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/TCACZ1788317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa555f795201bdc60ea03d25ee750b30dd61fe2a8b6fe15b2ba7657762348062a. 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/TCADT1861405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23f4ede988aadcedcf47ba23f7342cbfc1617462c2d77fe0b77d70c4ffe51c80. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/CA5KR2201312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e3b50626c6c7ec42f1592c005f7b72e5318ac32da9ee8e06335eabefa7e82fa. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/CA5KR2201313.
Down With Your Love (Poni & Vanic Remix)
Down With Your Love - Poni & Vanic Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76fa9542ea5eea5234065e5429c651ebbd923e368f0ad6d35b3e1e996d70328f. 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/CA5KR2201314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbad045bbfca69f5027029d742c4392562f1c018aeb690b563a0ec75e75d6d72c. 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/CA5KR2201315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d68de17776558d395d66b00bc3b5031035416af289eaa3dd654553eb3a72176. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/CA5KR2282991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d5d1ce337c60226c1457af79465100ff7512372c056a238a646753019ae633b. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T10:16:52Z), 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/CAUM82200473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7179bc3544120b97091ec1dec2d36533c49fe7cc5fecf380a2ab945514378381. 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/CAUM82300200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4989a713c1cad92dd8d480dcf0bd473085b77da5b74d8761052c22bc701fad12. 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/QZHCR2400023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf1a83c264739c24e063fecdc3047709fbde60b2698ee495d1387511e6650e45. 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/QZHCR2300147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47e2b85a86856bc54bbe3a37852e2146b3a8e135f602442cf99d7ef94b63cb4e. 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/QZHCR2400021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4989a713c1cad92dd8d480dcf0bd473085b77da5b74d8761052c22bc701fad12. 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/QZHCR2400023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0d234781924bb280ee124bac4f54b2216d42a05ad6c287c5a03bb02974a2391. Chain 2 (Bitcoin): anchored in block 957759 (2026-07-12T21:46:51Z), 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/CA5KR2511459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11266e5e6ae4cb6d1f766dada09db7c4fc583574fcb3e9ecadcc31021ac0b5cf. 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/USA2P1499054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37e46a9198eea550831c134b69e1416dddc661c4fef5517456f1327fe90d56ca. 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/QZMHL2264391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2948f4a00d39c54c545909dfb5a8a216776dd877af2804ae29165f909fc790f9. 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/CA6D21900351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2948f4a00d39c54c545909dfb5a8a216776dd877af2804ae29165f909fc790f9. 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/CA6D21900351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07b858c84d68e267b56070c1c7c6d4bb216d7dc4c51cc7071124cd8bb7d34ca5. 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/CA6D21800303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa247dbc23103a4170048fab11500a10a0f0822c21d3ecd228d71953559c0cd41. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-21T16:28:23Z), 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/CA6D21800403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x089ffa84b5bc069173ffae76aa0bba291cf1f0183809201ac555039eb93119f9. 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/CA5KR2271786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x089ffa84b5bc069173ffae76aa0bba291cf1f0183809201ac555039eb93119f9. 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/CA5KR2271786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x841fb909b563223d46363d6e208e3bb49508fe1799405c09f3a0cf4ca20e6c0a. 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/QZMHK2572621.