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 0x60a889e6b2bf6da054ce779a3e1b556ec7f02f89c70cb26f27118b5508f75f0e. Chain 2 (Bitcoin): anchored in block 953660 (2026-06-14T17:20:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/543d09ff-f1f5-4a28-9850-7e1f3da78031.json and https://artists.proofprofile.net/proofs/artist/543d09ff-f1f5-4a28-9850-7e1f3da78031.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 0x302d6e2c0e2922ed6d5f220e4a7fe9846c2660c179340a3b1394c35a494e3cc9. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USDBB0610539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x276050484ce20ab0154758b477114a9f435b9562a8bfec16ff5828a64643ccd1. 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/USDBB0606092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb56face053e4f70173cc1bd806ffc2bfd3dd6305cdb81c11782717c21131e4f. 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/USDBB0604526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6876c25b9aa3cc73bed7eadebf66b636b4ad86bb9f36b2e6151905d59741814c. 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/USDBB0607912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe71a88071f9c8466d1b368caf7b17e967d60ca07628a4ff09a068eb4b0c49be3. 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/USDBB0607159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f1b24c21c8756497e4402cf09a1ccee36bcae5798901962729467453c9616ab. 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/USDBB0607413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d57e3714b2e030bb7783bf368131a98b39d599d0cbadac9c207de5305f430db. 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/USDBB0601600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77c88b2b2678bf7abc5144404fa5e40d038118f440d8670cfc064abb7ff245f7. 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/USDBB0609554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda20f2a9c673bb6eafbefb09c62bf44c5806ca4e8cc573ae103b511d9ccd5833. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USDBB0609536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c7d3fd01fd44853f35528bc5ba1401264a6ca5c6e2f3030e008d4e71842c7b7. 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/USDBB0609972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf7107773c9a5bfecf9f8f43a252027b091ae7259dcaa24c1ab56bad7ca70400. 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/USDBB0605897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90983c437033e22cd2d558c7582c4a5da5866a226f39d619837c7b231ebaa094. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USDBB0609123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x276050484ce20ab0154758b477114a9f435b9562a8bfec16ff5828a64643ccd1. 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/USDBB0606092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd08aca3f8c013e573254bf2027c7b41dabd3c71b6bf853e80c0499367dcf8122. 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/USDBB0606946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b8ad512e84f7ea67b184881a1f8f66d4bda00f2329efc5430e24a1f7a920c1c. 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/USDBB0604883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f56d1990923264e791a4466dd82decfc438db99651194c42edb92321cdb5459. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/USDBB0605552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdba6badebfe5fc3ba3a1d24dd6f8977d7607924ef790c01ac6ed3aa9a08b424. 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/USDBB0604995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9b2699518d82297008cf9ccaf04f1af91eeb066cf685632b730d1c54e213f4c. 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/USDBB0605496.
NYC Salsa: The Incendiary Sound Of Latin New York
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86437ebc0bff2ba672f44c6bd04eddfa933670b9bc9e743ad17f0f3901888197. 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/USDBB0609193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0707f3355f9ec9102414d652d5363c73f4ab2606c4cbc911af83a2527ef1f31. 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/USDBB0601657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe7a51ec5c94a7a26dd8b77e774b820279854b8f4e7e52107f3fc892d25515a8. 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/USDBB0600825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x990f763ea4f6c1faef4884348490d5fbd347aa7a05eb112112f05012a9c27b55. 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/USDBB0604491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x232742cd8d03ae09e9c49a8cd1e2257b3c96b0215b70b3608f35e070a4f8d510. 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/USDBB0601213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbee22a8a7648967fab8e8539066066f80126e2204575ab1888889f8227bc17e1. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/USDBB0607137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc89ee1342a531877af8ccf17910d8707ddb1bcbc7bf28b4818795bb352e42d37. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USDBB0601082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8c2bdf1b8fa0f6ea9e4acda5e285e28374d71255d01fde49da757ee19611ea4. 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/USDBB0603607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdab125b337b7888d74ee98dab5a88e11bf02868127089fb5ee73e0769f50c1f1. 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/USDBB0601619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x880e1ccdd41bd5e5be15b634b82ee937114ae6f8a9029093f7274c29c0eaf01d. 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/USDBB0600366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6d5a3c6de07f4c36e651266f683e6b6b00094d49fb30ad50a7c623cc5d80429. 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/USDBB0601668.
eurosummer: a mediterranean summer holiday