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 0xa6d54efc871a990e8a9ca3e0e58d2b3b9f0827882687ca563015a95694bb1d41. 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/7686286a-ea0f-4d52-bd51-1621839fe55a.json and https://artists.proofprofile.net/proofs/artist/7686286a-ea0f-4d52-bd51-1621839fe55a.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 0x59010cf0a1b9b7cd66dc490331837086c07018e03f2a7b6e6a7c4cbc4b91fd06. 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/USDY41534666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20a04514e2ef135c06e6a64508ab7d5f41e4114af62e04deb8336a55fb67a6ea. 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/USDY41534667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09cfd5feec4deaf703cddc4ab690cbad2f06168ebfccd3adc73c31a0c98393ad. 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/USDY41534669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7d77c8cc0bd9f4a4203ecdcaec4f5168bc86d32aefd4ebd3d96962a27ffff29. 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/USDY41534672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x503bed07a4cedff7bb243cb84b45f06219ec6dfa7816bbfc71c1b1b5b98c6543. 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/USDY41534673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10ce7d11e21d9303d218915c61bc13a8ff4af4c8f80e3f6f0fd9e02765575804. 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/USDY41534674.
Lucky Nights (Unplugged Live Tour / 2000)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6577af903b03f9aa22bd786f543ff8ffb570599a6590fc81a15e469f69d038da. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T21:05:52Z), 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/ROCRP1002432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ba49971a2cf701f539679ac34ef8839630b0b0ad81daaa8f2f6c84530d4858e. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/ROCRP1002433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59ec48ea8be87235bb7efdb17313e7d7cc4ed1f263dc6b3006929d7fbb422614. 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/ROCRP1002437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58760738eddb9171dce9bc9c893526c845108448fca8a101018aa4271a51560c. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T04:30:31Z), 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/ROCRP1002439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0ab366b78e8962cd5288b137c30a5bbde0169978de3bbd46da9e38f34fbea9b. 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/ROROT0626002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x092c7ce3578fc06ab4f4fd3a858b3500d20c91351c561d33c9743854b2012ed3. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/ROROT0626003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabea1e01587bb4dcbdbf7b7019a08d4ad7de4835f6b0c8a8332afebccabce446. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/ROROT0626007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x146af1a885d2a051d37cd9d2caea36b92f929d7e875a162cd5606a194d9c6b1b. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T12:03:04Z), 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/ROROT0626006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x192f4d886fb1fed4846e77794a766e46330d25cba02754526087e944c77131bc. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/USHM91122917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88191f8ec81a737dd1b354e42339f9727c313d812711c67c93901eb3e165a91b. 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/USHM91122918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6fd04b386819f74075e33678d129d1e42718ec41ae8ea71ed5a47eff5552257. 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/USHM91122920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb49b996cc699dfd0544a9f87ea80b56b077237fcabab33f1e2b843ab9801b3f4. Chain 2 (Bitcoin): anchored in block 958992 (2026-07-21T10:12:17Z), 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/USHM91122923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea2ac086249ac0c321aca7e4e1c13ddd45cf67fc0b050c9c056a93d0310b1a4d. Chain 2 (Bitcoin): anchored in block 958752 (2026-07-19T16:00:28Z), 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/USHM91135651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00490d7ee32783868956af5b541833b27903d81dfb2c72b51bce7eb42a0ea2a9. 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/USHM91135652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08ad6609201c128aa4928c6d85287e258c74d4c282959a1c8c19af8de8351dda. Chain 2 (Bitcoin): anchored in block 957529 (2026-07-11T06:30:13Z), 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/USHM91135653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf27cdb7068295a651ab73f81c9ef281e5eeb44d68cf0df53aa7d1fe91a4c718. Chain 2 (Bitcoin): anchored in block 957526 (2026-07-11T06:03:28Z), 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/USHM91135655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95fed033df2b287ecb6842a50f7fca735a71f830711fb20dfe947ea6b9bb3857. 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/USHM91135656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x975cada82134ab9e91b6ceb4e2e7f9cff57d14a16e6deaf43ca0846f438800f8. Chain 2 (Bitcoin): anchored in block 958662 (2026-07-19T04:43:15Z), 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/USHM91135660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d3a9bdb8adcaa23a612b547a15e95e4a42d336d2ec62073ed3d78911b746318. 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/ROUM71300049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64e84691c4b8f201a4bf4674db35d956ce0323819722035f61b451f166fdcfa5. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/ROUM71300045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19c8e39b308138299b37ea7d394b9812ee4c50d8da0ed54dfa74c52c2c6adcc5. 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/ROUM71300053.
Luna si noi (Din filmul “Ziua când am dat de aripi”)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79371f35fc19a73b3fb8a6e2e5b059c64978c0234a7e5ea834cb3e48a7cfb4f0. 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/ROUM71600178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8df34838503d5f43f7343a756d6ef8bd77aaf91600a30a40be7fc158468be518. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/ROUM71600182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1534134d2fcf0acd5004973f9c82a9642fdde3f2df1c07086f5edce43fff0dff. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/ROUM71700144.
Luna Și Noi - Live la Awake Festival / 2018
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x301596bc043883ded75b4da5b87ccc3d07ed9fc870d8567737bdee1b4a3b8071. Chain 2 (Bitcoin): anchored in block 958662 (2026-07-19T04:43:15Z), 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/ROUM71800185.
În Corzi (Live la Awake Festival / 2018)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35c2d741be712266ece04074f60fbc7dd2009e8af03043bf5297f4be5e09c191. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/ROUM72000023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b5dae27eb451e8722036881ef1024e35121ed1944a6f9e9a85764a2217c7976. 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/ROUM72200022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85bf13b081b22bdf17bd541f2eb8258f9889632b5860d6c7345ce7c59cccea0c. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/ROUM72400109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3e365fb2ed420f6dd506c0b34d90f9354b273b9a3c92aef09d4f63d8d9fdc4f. Chain 2 (Bitcoin): anchored in block 958816 (2026-07-20T03:51:05Z), 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/ROUM72400107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcf462a7fde753d242c30746e57ec608b209cd5d75a95e9987e3675c6b754f1b. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/ROUM72300246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b5dae27eb451e8722036881ef1024e35121ed1944a6f9e9a85764a2217c7976. 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/ROUM72200022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe507e34fc99c1332870ef72c96124cdc2725198e151433da8d8b3ba18483845e. Chain 2 (Bitcoin): anchored in block 958703 (2026-07-19T08:36:12Z), 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/ROUM72300011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85bf13b081b22bdf17bd541f2eb8258f9889632b5860d6c7345ce7c59cccea0c. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/ROUM72400109.