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 0xea31374155523ff8a646926b4f61a0fe4deb1922380fbbafe7e5011140e3a4a9. 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/c74f8836-d63d-4385-b9e2-467272bd8ae4.json and https://artists.proofprofile.net/proofs/artist/c74f8836-d63d-4385-b9e2-467272bd8ae4.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 0x9fdbcd970507f5d6f89be44e1a3bb8674a7e3ff32c0cd7145362e1f1ffec770b. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/GRWO10800068.
Mprosta Sou Koita [O.S.T. - Sto Vathos Kipos]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x057f9333357694b026f1d665a9a4a53cd06f23a1e74aa9038e130d92b851d08e. Chain 2 (Bitcoin): anchored in block 957892 (2026-07-13T18:21:16Z), 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/GRUM71101115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e34e0d9503118335f5523f1d6d4e141adc07b2fe8b392b47b3c0f62ab8f49bf. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/GRUM71003344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46caaa3bc5597acba7f82d2e2d525e8c410ee11f1cf4958fe7f22580479ea36b. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/GRUM71003346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92278f9b937c70542384386fbb17d9185123eaf790526b0bfac6fb632e89057d. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T17:09:01Z), 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/GRUM71003350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa96abae63bd4bf156c7a7a36df8b907d4bac51cb9b4d442965fe601e2b11f897. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/GRUM71003349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x827d7d17fb23fbc01da45dbdfdff4cc262d554b344c1585ec02a482360bc7a86. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/GRUM71200871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e5a6d9b519e58299f78836f1609d3614039b4a9dbbccada10f60d12ba8552da. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/GRUM71200104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f3560f375863e1f3e0d0d43dc923c79c174e1266aa324e68bef1652f1ff1263. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/GRUM71200867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4981bfa06e42baee73865b72847e873b86c1a3b00f2faa6483eeb0402aa7b4d0. Chain 2 (Bitcoin): anchored in block 958860 (2026-07-20T09:58:28Z), 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/GRUM71200862.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x893e54c6b5d56d6744294d96e77a40d8718533f8809478341303b995b66f28a8. Chain 2 (Bitcoin): anchored in block 956482 (2026-07-03T10:33:57Z), 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/GRCB11300376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe599e938f1474d7dba02da4a4111ae214ff275e19bc61d59b93093bafaaeff2. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/GRCB11400569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa29e0d2895360c419805da99939a909acbc5adedd932d7307faf3e91e2c22227. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T12:35:46Z), 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/GRCB11400572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec6aabbafd4a45510d814788e19f3774a5453a2a9eca1744c2de0f30b94ec43d. 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/GRCB11400573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52e5baa0a7a124cf29c7d18a0414208ede7c5bfa5712fb286f33996113ad877d. 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/GRCB11400574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03af3dea8f71373530d72bb97436216762ab9e5cd1a64e21c9bf604fce2dcc21. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T16:08:29Z), 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/GRCB11400570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac1ed475938e8efe327c30e87db8cf87967bf82aee2f32ee0e1373dbdce60ae9. 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/GRCB11400575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaf6931e92d5e7fee00048c4bd5d56f83f73d1a169b400709085b6004abcda0c. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/GRCB11400577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb194ef0b5e11a30141ede76342f48be75730bfd5d070f6a0a0e443826f82fb7b. 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/GRCB11402683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1684ed43d6fbcb4a58c30ddc930e3895bac738e122029a5f4a6197809e05b135. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T11:28:35Z), 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/GRCB11402813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8af0afdb1d044f8a5ef70a42ad72ed55892667bca3422dd1e39542954923694f. 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/GRPA11700196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x719b2a78868fc4f317385694b0d225de0ab71ea6c83035fe41c0edea77037421. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/GRPA11800306.
Na Mou Exigiseis (20 Hronia Eleana Vrachali / Paidi Diko Sou)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8af0afdb1d044f8a5ef70a42ad72ed55892667bca3422dd1e39542954923694f. 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/GRPA11700196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdbd6f65880a8072b50aa5675a4d5ff558608cdcb562ccec79c084dd146458e1. 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/GRUM71003348.
Panik Concert 2023 By Opaponlinegr (Oi Panik Superstars Live Sta Megalytera Hits Tis Hronias)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7aba0f84f16932a7cf3b0f1af23645e5623e817dcdddc5f28d6d7b656bccf3c. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/GRPA12300598.
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