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 0x0eaa5b27149ed5d81b07c7ad1228e7d55627ba8fe4dca17dfa7eafe4aebeeee6. 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/dfc4c2ba-b0ae-4310-8b3a-9f41b19f7a77.json and https://artists.proofprofile.net/proofs/artist/dfc4c2ba-b0ae-4310-8b3a-9f41b19f7a77.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 0x789b39fcc49b1c045197c19690bb410929d36f38ce1a1b0195f8d4d55dc26e6f. 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/TCACU1609784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bd0d4455bf071ec1ea582a9d229740d0b85f478ed905f299a10764b91679767. 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/TCACU1609788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcb0f5bc6a445fdc719999ec2143413529d987aace61e6376d09ceb24b758034. 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/TCACU1609795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe272bca9eeaa02e2fcaa92bb1ed64b58aee07c8025b300a0afd343631273de10. 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/TCACU1609799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedef3dfc00b1a7996006969dc9703a2dea3c5663e91c966510cef409719514c9. 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/TCACU1609802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cc29baebfb91ed3e105d04987ac17ad8f6f0ae76f620256ce59d1e88081823a. 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/TCACU1609806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4c126a4b4c727e9b33c03b9d31e7b0fe1d648cb5fc767a2267dc1859877abf3. 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/TCACU1609808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbcc591bd18d19abbfee6a3ab88d4a2ba59345b41579275c409fef12ba8f1352. 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/TCACU1609809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a9514a8cc1276314fcb9f5989cd8149ea9f0192bac19ae90205cdb18a1de658. 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/TCACU1609811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce1c2d56d3f800ed58875a49e333d1e4242b6a37ff2778d020b99e78e2c580a7. 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/TCACU1609814.
Prishtinali (feat. DJ Blunt, Lumi B, Lyrical Son, Capital T, Real One, Mixey & DJ Flow)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99a07552c53928c4328c95742c12cff50e195e4052d6f966e014616dfa85cf69. 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/TCACU1609820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2074488a371cbd560700eafd199f8dd765c00c114f1c7a233cfb47414fce33ab. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/TCACU1609798.
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 0xa83463a0bc61e0e41d03ab06629fa32d99e32a41388125809ce2773bd647e72d. Chain 2 (Bitcoin): anchored in block 960225 (2026-07-30T08:04:30Z), 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/TCACU1609812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb537f92486db152a681cb3f466f7cd81543fc5c43d00e80fa2ae72dae29d6ebc. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/TCACU1609815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31651f3e1f7d3e2a0871901fd64389d51711dda533b943186af3653b949703d2. Chain 2 (Bitcoin): anchored in block 960268 (2026-07-30T14:53:07Z), 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/TCACU1609816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8281d6a3ea4fbef5ab8445f3a86bd74bdf9a84563f70c8df2b3feb6480814d01. 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/TCAEA1803987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8eca5f93ca065ec2985fb0388eab242f48a08b76f78fbc1395bf4225f314c52. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-17T00:12:04Z), 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/TCAEB1913218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd9cbc90ecfab0872b28995a695c5ac4aa1c8db6a7811ffc2d9f393583980ac8. 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/TCAED1929871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9d1aebf6704925f2380e75b893154798cee489441ea1b7e59f415ce1ab3e50e. 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/TCAGH2242788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7d9ebba41561e6ac432d9050fa6cbba0e1cab7841f516822fdccfa6c3d996c0. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/TCAGH2239014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb109c1540af4e6f85d056f13042a8c9f4b8eb2124d6bc84e7a321b43eee28dc. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T15:49:24Z), 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/TCAGH2239054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd92517eb54d47005a5d96ef8cc771f953e849ce95eba42303cf41f103edda7b. 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/TCAGH2239619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a6791a15c5d2e5a0edd21a5ea1823beec2adb5969f6923f40cefb2eb123309f. 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/TCAGH2239637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06a50db49faf457f5c65dcf7c3cc9e2a6f447931c70b79e536ca9d70487879fc. 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/GX7852400504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2923fc9e2bc7c7149577842802b4447868d2f29de71c277e7f3a810fbc90535e. 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/GX7852400527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5c5f8f91294e00a26f1a7a1343969d11517372699e5e508f6418ca880babc97. 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/TCAJV2586478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08278bc6b01d72f7c4e5bc57fd3aea71e2921d85b5e3e8c91daf69b2de29dafb. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/ESA122562642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x884cd0505b57c4b775eb5c30f76049b5d7d178a49d39d66a5aa65db44eaa2749. 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/TCACT1625266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d99d154da3dae757fe74cfb55e8510e94342425404779d8c6e73d3cdb9a4fec. 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/TCAFU2108753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xece6bff8ec9a5e14734a6df03a60d0e62b39759368520823168e77dd2e2ee423. 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/GX7852400503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4842a1b679057d0bf2c751bd88d7a75615d7d3729f8508ed3ae4b49b05bc95df. 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/TCABB1113040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaafb8b0cf1affd1d2b5b67661c9b71fe27e6b20325031bbbe24fd16d30b7934. 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/FR6V80121744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67ad607f5f813aa4f466a4662517ae1c97608e0c0a4b47cbdc2b7dfe7cc8b1f2. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), 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/XKA032000253.