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 0x46676a97b2a715a845eb2b04d4309a3f4bcace32f0b3aaa869e0ee4fb1167a3b. 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/aed2a695-2c5b-4698-afef-bd49bb8bf889.json and https://artists.proofprofile.net/proofs/artist/aed2a695-2c5b-4698-afef-bd49bb8bf889.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 0x8369e1b65dd1e98c9157edcb73a68860de3a8ae55369183e7b79718396b17bf8. 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/GRSTY2200788.
Krata Simeioseis Pt. 2 - Live at Dozen Sessions
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4d6f96ce87e912963d4a0216f48cad35e8413c4018353087f547c4933d9bd18. 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/GRSTY2200789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1db225a6ad43c3fe34e73ef8020668ee0ba179263a3c98cf12a576669a581e8. 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/GRSTY2200790.
Chauncey Billups Freestyle - Live at Dozen Sessions
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ac25cb7e863c783b7c194bf17edde2e63b3735cae391600cdde808f9ed506fa. 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/GRSTY2200820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0a0e69c9cb17abf1524cef099cd54c04d732d6028d6dc5df238b32f3ac6d738. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/GRSTY2200821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18a4b7bab39fc1113520868a4b25735e83a5aef2b17320548bf09efd3fd9d1c0. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/GRSTY2200822.
Ribbons of Euphoria - Live at Dozen Sessions
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf0e92cadc9dc7e157c8a4ec1be2543fa53de94825ba600f938ce05b5cce18ba. Chain 2 (Bitcoin): anchored in block 958756 (2026-07-19T16:12:29Z), 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/GRSTY2200877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc697cc7c68f5d4f20cfa9623c801c38275453fbc0d3c73c93665156eeaa525d7. Chain 2 (Bitcoin): anchored in block 958465 (2026-07-18T00:04:42Z), 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/GRSTY2200879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb6dbc9327707810001a770a63db1efacbe919fdc0c2a99219b443c19aa2e9b8. 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/GRSTY2200928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5baf82291342cfe22cd9419f8308b34b740d8229a9a0c7e9741b4e5c0c79b4d7. 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/GRSTY2200929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b6a787bc43fdb61e337db41819760d9a501bd8adeac3f0f8abe016eb8d36dd4. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T10:05:23Z), 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/GRSTY2200930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fbf0377ee3c462f5a3734c9ac35d2e60f59f3848b81024eab26224daec806c5. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T07:48:27Z), 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/GRSTY2200931.
Konstantinos Petropoulos - Live at Dozen Sessions
Chris Kiriazis, Spiros Vrionis - Live at Dozen Sessions
MC Yinka, DJ Booker - Live at Dozen Sessions
Vasilis Rallis Ft Dimitris Katsiv, Voodoo the Cook - Live at Dozen Sessions
Τo Papi Kai Τo Mparmpouni - Live at Dozen Sessions
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59753c576e39b9cea76ff222a902625e48a84cdcafa9a0bde31f61f64dc7eb2a. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/GRSTY2201291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51362b720dc4ac271e3f5d15ca52d6318e759a3719499725a5fa5e62a001dca4. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/GRSTY2201293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2247caa1bfde3f62446b1db33d6c0cfbd81df41b528074d3338114e3afdcc67a. 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/GRSTY2201294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a2a12a8fbd74396dfd86bdf011cac7854a9874467705eefa24cf60ed3c8e330. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/GRSTY2201295.
Strawberry Pills - Live at Dozen Sessions
Septimo X Jako X Κάτοχος X Ada X Omega Ape X Andriko - Live at Dozen Sessions
Mr Emor X Kitrino Fonto - Live at Dozen Sessions
Phantom Dodgers - Live at Dozen Sessions
Zografos X Ghetto Rock - Live at Dozen Sessions
Giorgos Tabakis, Panos Kokkinis Duo - Live at Dozen Sessions
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dcc6704768bc9871a9a2e95f72c794172511542479d2b882b21d768e4be80f2. 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/GRSTY2203392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5169555edde80d0707ecb686cf56cd8aab64be531bb07478183cf16aee9c077. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T15:31:18Z), 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/GRSTY2203393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd44187ad1277f318c5985430f14983b75362cf7e43613e0693e665669142c7cd. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/GRSTY2203394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca73ebcf7ffbfee68060a19ba39f37396fc3b68f5728e52544e8c4f972c422d5. 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/GRSTY2300330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38bb68ac4af5e6de61cd64a851f6f3835133db76966fbb3997d8f4d8c26edde6. 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/GRSTY2300332.
De Diaferoune (Akykloforito) - Live at Dozen Sessions
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd192df2d91b804188e1843c0cf15a976778b3939ff9eeb7748c31078878b81ca. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/GRSTY2302102.
Yparhoun Tropoi (Akykloforito) - Live at Dozen Sessions
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09d14fd697a5fd1375e62de537268bb598af086ac2d39740b2d227d4727048fb. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/GRSTY2302103.
Crash Down (Akykloforito) - Live at Dozen Sessions
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08a08ef19f06f8be9038c58dd7cc430ec464c9423a1185adcdda01911ad9b0d1. 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/GRSTY2302104.
Killer Instincts (Akykloforito) - Live at Dozen Sessions
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0eb556ae8b93939fd373218a562e8f1190028acf73f1b270354e9bf3e78c005. 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/GRSTY2302105.