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 0x565306825d8c389c2d956acb1319956f3249f0e1dfb75d78b9e310dff0d33509. 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/76e22431-f8a7-4027-97c3-0a5b3ba62494.json and https://artists.proofprofile.net/proofs/artist/76e22431-f8a7-4027-97c3-0a5b3ba62494.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 0x3947958ab2daade7dcb392061daeefcf47f099c3f005dade9d8cf0ae806a10ad. 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/KRMIM2008862.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x958d0a6c9836bdea05b074eff9fb51b1cc585f5d5e34d8253b4594a5da1889e6. 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/KRMIM2027751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc170124505201b764f9fad944a402ce1fede6031d65b2703cbdcfde10019dc0. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/KRMIM2115775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5c8daae73f834c88dbd66d354a723cd98e7fe18f71d253224956c9845e20fe5. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/KRA252102214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5dda11d9ae7e5da261f7ed678d57f5ce41b94d45f6b6e1a2d4b5f2e7785db89. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/KRA252102216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafe83eb1e3404689a5e8318b8225f438ab60c6d24442054e051dd3d59fee16bc. 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/KRA252102218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ba193acadc42ce5f485e0ce1756dda8af37681f50d420a6823f184dcdfe046b. 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/KRMIM2351181.
1, 2, 3 Go Shoot (feat. Blase & REI AMI)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f8af2d645a227484090c597b16efe0a8e4d3a694a73eaea2548b940bd5564e2. 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/KRMIM2351182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf87ebf974d2cd780db85da80f66b030be297dfc7f5ec9f8c6214dcaf54dbebea. 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/KRMIM2351183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10c29056cfda2b431fe67fb014b7c3aedc5a02de6d8442c8838cb9119e3eb50a. 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/KRMIM2335516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabb87608e4ac985f4b98c91bd6182f6971e11cafba46234509ce54033965bd93. 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/KRMIM2351184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97b2cc4ae073297804b7cb09c5e67906d38f5cc0fecdac5df1d4b694ea394fee. 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/KRMIM2351186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1156df831e52fa8e5918e0480106e36a887d122325206dd7493e374903078193. 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/KRMIM2351187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x734098a1260df7f8aadc85b6f0cb8b87be92f4ef9513dcc718ea6e54323aba9c. 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/KRMIM2351188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91fe37ed1c42fd2b3ccbf98625962b6285afb9f36e2ea98a2992ad46871076f1. 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/KRMIM2351189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe86d18f25c66cdb8ba46141172a06c16bf14238c73949d8ec2fb22e50ce3378a. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/KRMIM2351180.
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 0x6a4653c8bd6a5e2c7adc055fec81e9260442394ae8543cec04068949257f2b54. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/KRMIM2351185.
Battle for Happiness, Pt. 3 (Original Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07971ec85cf8c6e068e113a4f82c1fe593d67da6725e67d78065c34d738aba13. 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/KRB472301037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5445f293954f10aff6ff52328a9f346dc5c70792ed7db2acc167d662db59ba91. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/KRMIM2453008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f99732d6decbc370c1c7ab24822543f928a2784ad482a3cad1684b1b7e256cf. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T06:49:26Z), 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/KRNAR2355148.
Achoo (Feat. pH-1, HAON) (Prod. GroovyRoom)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c4e725064121a5987604a7fe5a45f2287774baa4844517a8e24c4fc1ef97fdf. 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/KRA492001473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42cb86fab464d912b1169661b18c153185e4b66dbd92fc63842250b4a9c7ebc0. 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/KRA382200136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bd7a1a27754ed05d74be35481c8f0700749a7fdf1ac0d875c965dc47e361776. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/KRA492001591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d38dd8aa5428ac969f322b680988db27cea024738f1f230bb9299a4f57de48b. 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/KRA382207708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x685c9d57d41fee519fc377879918f47bef505fb37f0a72143d059feb569df397. 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/KRA382164061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fee55a37d30fea38cca53da8c196b6aa2fe28cd1321be19bd776087bf0df555. 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/KRA382159261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf51bb1a60c9e20ee2145fc0e0f48ff6e32095ef0db0f5ed0ecf4b85be045a162. 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/KRA382103848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x156a22be7d6dba09bdbe3dc569a93836717576df957ea952fbe2487e675715f9. 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/ZZA0P2312092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b7e616f2aea1c5c180a13121158f95339676fa93b274c69f7bdef3d885a181a. 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/KRF152100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x081ea202f8e2852b067332a9c7543c5a56c50b52cf852751d9aeeaf94fedbb20. 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/KRA492001308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48e09ba87cfa4d748a7335923dbf9f5b50a82c30f21ea884354888795527f8fd. 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/KSA012157476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa71c011ffc499af206c855da57a4410604b6e7fa9be9fb266f08efc7f617a479. 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/KSA012157466.
A-Team Freestyle (Feat. A$AP Ant, BILL STAX, Strick, Mirani)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe52f80e2b14f52a7bdb463845d62985cafbe7ce282203bf221f53bb175697261. 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/KRA382204404.
Xtra McNasty (Feat. Jessi, Awich, MILLI, Ramengvrl, Lil Cherry, MIRANI, Maliibu Miitch, CAMO)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bae5ca6d36d4f3ccd7f5273c9f24400319b1980ad432d3643ad0512651a9691. 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/KRMIM2451773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62342bc60ae117dc286adb0e4b8b37466ead44485f410205901c644982ce4822. 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/KRA492101364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bf6842edb70d4d6afe057d2ea94b265ca57ad41136d65368890a021fe641ee1. 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/KRA382406837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb56a72568d23384b74120a6364c7dd26fe919b9f6d9682045223628ae139b0a8. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/KRA382164062.