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 0x6aaf8eb0626758d49e99a9a2a541ecab6014b50ca3f78bc8aa3581c12b1673fa. 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/e9b1a8f0-7c0b-4847-b732-209a8a4b25fd.json and https://artists.proofprofile.net/proofs/artist/e9b1a8f0-7c0b-4847-b732-209a8a4b25fd.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 0x0795dea93553f70338517ce1c45a8ce84acc58bcc39d88af49e3778a5f6f087c. 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/GRCB11400726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3abd78abb47eaa49ca66617aedc27ea61e9174b6e0f217faa0e7c62d69db623b. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/GRCB11402958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb91c54fc5be06d0ca5ada2ab5f015b3a9cd5f463d155c3ce30cfab5938ba5258. 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/GRCB11402954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x870635fd720878b3ec8809f6aad0cf33ff51c77fd4e809aa7b290d3fa5916957. 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/GRCB11402952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xece9546bdee6726abb8cf26fd2c353901dbec2baa2bd7852c1d4dfc35c914d03. 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/GRCB11403752.
Pos Synechizetai I Zoi (Livin R & Zeff Remix)
Pos Synechizetai I Zoi - Livin R & Zeff Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaeb6f364ac7bbc25c00cb4100fe2f85c72de66e43b8daf21060364fb54df803a. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/GRCB11403996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xece9546bdee6726abb8cf26fd2c353901dbec2baa2bd7852c1d4dfc35c914d03. 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/GRCB11403752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a710dd8c1704abeabcef008bdbc6c38ea11a44f1fb0ceedafcad2d015ce2f2d. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T02:46:47Z), 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/GRCB11403404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2563d982fa88097dc5b37f14a158ea8341eddf3176b165bd0255f52c9033cc1. 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/GRCB12100080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x567c4a31a71d9170abbe8e50b56d743e358109053adfb75812f579d9e4033916. 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/GRCB12300046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16bdebb747b29fddd52c97c104fb38d4590ab7abd07012e21578340580277552. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/GRCB12300380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ebc6ae9eee7916c5826b7da37465917bfac47b5fd008cfc20f3eb40e8dab096. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/GRCB12400037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1975af1d405673bc57398c24972025631c94d479f166fb9e56e111cb44de7268. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/GRCB12400259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01a6499e04735194006677f00fcecff6d3a1db5a34dd5c04dfa71cf3ecb99d2b. 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/GRCB12400260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef5b934b1b06f4f98aff6913a15507d365c979b05e1bfe313175872cf08cbcfe. 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/GRCB12400261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16bdebb747b29fddd52c97c104fb38d4590ab7abd07012e21578340580277552. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/GRCB12300380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75f0662dcb958e4e4b624a7d57f41635568c9e8a2ff3ff223ae7e3053865723c. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/GRCB12400263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf766ae5c4d039d5876f21d2e9c528320d7e802ff26ef0d9194309e51e84777c8. 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/GRCB12400265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80452bbaf089336fd2cdad3ef9405017d5ec23cad6df276f46362e615a503d24. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T15:07:00Z), 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/GRCB12500018.