1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x704a3857a57affa5da1e0391a0e452d64d80c95a3d1dc4e1308feb4bfbac3080. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5db5f011-8f87-462b-9f29-609668adc53c.json and https://artists.proofprofile.net/proofs/artist/5db5f011-8f87-462b-9f29-609668adc53c.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 → block OTSBitcoinBlock must exist at that height 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 0x2df30551b5cc5a26123266f849b4dbd45ed628a42918ad278e91d4cb535f7d37. 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/ESA092222334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffd52a2ac2587c0e686cb22d25b021205f5a507edbea888907106a61e7ad51d6. 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/ESA092222337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39963640c94eea540f98e9bd1109a4f62a3120ea5506e306ae381f4219937aae. 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/ESA092222341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x725fa53a1b203b7a1fee6e8d08ae9d2a028e40691339429ef0f3d0d43e2ba0e1. 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/ESA092222342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63442a2a222f07ec991040f09b013f66ed3ebf78a7c9da6e307e19ec53ec633f. 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/ESA092222343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x056065b434ff27cd2db23304d20902c8509e224059901a16db7e134b4e17dc92. 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/ZA42A2200968.
Note di Natale (14 canzoni per la più bella festa dell'anno)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba67b7a334eb24ddb113ed1b52af316f65395195c1e3a0b9d630bd41186d48f8. 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/TCAEM1991156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4863d06334db04a5001e611b2551a7a9ed6dfb0146e4a5e692532864eb90f8ce. 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/TCAEM1991161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbde08066db28b8e53da12487da9c8811914e6020bd36ec88caada698599fa179. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/TCAEM1991165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdef84fbba8fc0f1b8b23691cb81e5c19d34cb8259fe07e4be61a9974eede2aa4. 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/TCAEM1991172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12fd416e58c43b85f13076d2649887b28d86424d4a4065dfa0186ccfabf239eb. 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/TCAEM1991178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ed7096fe9946e2981ab145679dd05314d74f6f627c3973a4d7d3e1e1d2d8c75. 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/TCAEM1991193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd8dff52d27ceb11508281bfb84c3bf2d1bce4004f6c4dcfeb618d90878d3524. 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/TCAEM1991209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe48b8f07218f3760ae5faf23e234de5e60006ed2d4425877c18fca770b9be368. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/TCAEM1991212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd41a24268768290d3070be1bf581476915f27d10e29cb968d3b56a0e99d9874e. 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/JPZ841500501.
El Parral del Viñedo, 12 de Agosto, Feliz Dia del Niño