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 0xd6f855c8ee7d124286e885706fc29a5f5ebe6a7a491745f717340b66b9981eca. 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/b2852ee8-338b-4e2b-9f3d-a706cd73000d.json and https://artists.proofprofile.net/proofs/artist/b2852ee8-338b-4e2b-9f3d-a706cd73000d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
5:30 - Stefan Costea Live @ Urbanist Sessions
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 0x49ab8125733235ad29cdd0be1181c258fcdfb689b3afc0d353ec13f1ceb3a664. 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/ROGRS2300007.
XTCY - Stefan Costea Live @ Urbanist Sessions
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb043fb36a41251ad12d8cf835a6641d9199d2756ac6e354b3441464d24ddd79b. 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/ROGRS2300008.
Dead Man Walking - Stefan Costea Live @ Urbanist Sessions
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4b6a0dad5c470a5ad906cfb6bc38e63b4430ed2d733d2b629fac4a3aa474383. 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/ROGRS2300009.
No Signal Freestyle - Stefan Costea Live @ Urbanist Sessions
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8720b70674da5c7711f253c742cecb8c2e181233e926e8cddca230a6420a89b. 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/ROGRS2300010.
WAKE UP - M.G.L. Live @ Urbanist Sessions
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b3219e24bfc1ee4306c0dce937f23336a2f8219a9a15e3395e63e4a8ed384cb. 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/FR59R2310340.
BALMAIN JEANS - M.G.L. Live @ Urbanist Sessions
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fd766f62a3e71c01ed51435bdba212522e1e15ce36878c57ac960b0b7f2887c. 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/FR59R2310341.
PROTOTIP - M.G.L. Live @ Urbanist Sessions
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f18fa7c2710450fb57034a0b10e966bfb24ddbab695f8e40dcff6cf44b31a41. 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/FR59R2310342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb56df1b64334279a62e10f64b29a5b59516069956e9275efe078ca0cbb65e12. 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/QZTBF2389588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff2c7ca42fe4882c85e3d07d3b431ef722826cba53556a4f0ce53ba1ba3ac30f. 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/QZTBF2389589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d34a93047a10fe4fa60a8b3b05f8c7cfd7573a10d41a302a3f91086cbef1ed3. 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/QZTBF2389590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e6cba6a245205cb01f748b6910c7170d76895c0d0efdbb556ab066a34a7aaff. 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/QZTBF2389591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11d09a14660978321a6e84d4ba02fd6c82c48958e62933b5215dd3732b42abb4. 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/QZTBF2389592.
Poveste din Est - Solomon Live @ Urbanist Session
Solomon @ Urbanist Sessions (Solomon Live @ Urbanist Session)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11edce83026ae69d0e670a862cd6ff287ee99d81fceb4a6d0159121538a2c4e3. 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/QZHN42410466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0de69407db5f34b52f71f5529fa2794c1cee5d9324397f0d9c13e096b7bbec1f. 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/QZHN42410467.
Simfonie - Solomon Live @ Urbanist Session
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc76852a8e00948c2280adfccebec5021809007274f5cf2b1081bf429f57533fe. 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/QZHN42410468.