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 0x154a147127a0fef36990d566fc53fc3e882c2c9a5f1242ebde8d32ef60cf351a. 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/ae19ec0b-d44a-4e3b-87be-63827b76dac7.json and https://artists.proofprofile.net/proofs/artist/ae19ec0b-d44a-4e3b-87be-63827b76dac7.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 0x36c693afabed412b5bfc458a6cc3d5e7229d1ead51012a07fc4d994da43d6d4d. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/TCJPX2380658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf48d4204d0e8ac16d80ecf7d569dd358994c3b9b90109b10fc032419740266d. 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/JPP561100294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f68c7cd82accc44535396afcba934b7006ad516bbdeb0ceb23078c06d275ba3. 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/JPP561100306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x620c0ae6f1266f7030ba29e76122f89f53a0b0d01f71a59f9def08936f3d5ce3. 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/JPP561100412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x880e9e1cd4cc06dcabc2102a201cd992b72c985dedaad6479d144341b286b7f7. 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/JPP561100300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2764c64ec55fe266944a3c92f1e1a50b09a000290f3a9c328fb49f505bd1b7dc. 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/JPP561100981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2c1b21da80def9c1412f22ac07aa14b14c2015219685fef384727a4dab583bf. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/JPP561100654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55044eba6a21bc66b4ade6f37a1e0b07854bfb6783bedfc6b55eaf9a88aa93d4. 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/TCJPK2032058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2891ee633d7181e2faf18ba36fc0d3baa9b56c6db3ddf588dd7f90f72bd589da. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/TCJPO2100429.
HARDCORE SYNERGY 2014 Anthem - MesoPhunk Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x674b333471cc6f33c5ee8774d6ecf503b41ec3a2e8f0422882c0aa8f79bc3576. 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/GBLFP1518385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19c8ef02845408009aaa7b4aa7f0c0632e132ed9a078199c371c55bf159dd4ad. 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/GBLFP1518384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x635360dc64d14a95f264ade92028cf543f81ee0dfb635680d950613cdf111337. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T14:47:29Z), 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/JPP561101249.
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
HARDCORE SYNERGY 2014 Anthem - KO3 Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc8ccff2a0b1963203f118d018d1e67dc15c732838dc23e47db9f5827cda3068. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/GBLFP1518388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0816f68e1ad762550350571d84a146e6cfaa765650fb631e5d4373df59545b09. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/JPP561100226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89d155b4c5723d877324f5178170faacae4953269091999f4f44ce9c22227e77. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/TCJPY2483221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05e3ff7db8c36742a54e506bc0e5431f926418710a2363767c96966be66d34d2. Chain 2 (Bitcoin): anchored in block 960218 (2026-07-30T06:57:05Z), 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/QM4CD1500355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd03f9f64d5362d98cc0a0e362b74050adf44c77deb18058c80a4c7e04408fd3b. Chain 2 (Bitcoin): anchored in block 960193 (2026-07-30T02:05:19Z), 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/QM4CD1500358.
HARDCORE SYNERGY 2014 Anthem - Sash Dee's Breakz Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbda9c45c3cccfca54a887cff9c5946f1450172ffd3939a9641e213ddc3225ad. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/GBLFP1518393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39d638f52d18af77c88b128cbdb990c66fe776b1a5fe28927efd2c3c5ad0a88c. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/QM4CD1500360.