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 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 0xe2292e96777c2080a934ead77a4214f5d3b292692dfce0fa0067f547e5f69a5f. 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/6f44cd6a-08a2-4f03-bb3e-d1249f2e5912.json and https://artists.proofprofile.net/proofs/artist/6f44cd6a-08a2-4f03-bb3e-d1249f2e5912.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Musica Para Entrenar Gym (Astronomia) Memes Africano
Música para Centro Comercial Tiendas y Restaurantes
Musica de gym 2022 para entrenar (electrónica)
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 0xc180da79f829fc3b80e68dedd55efc35dc9c7ff513dd7e4f1a54b77c86a262e8. Chain 2 (Bitcoin): anchored in block 957796 (2026-07-13T03:24:42Z), 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/QZMEM2004027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xceb7d31ea1d47a78785cef3906f46534c51b8e62c4ca6a47b19150c1b381cdf7. Chain 2 (Bitcoin): anchored in block 959065 (2026-07-21T22:00:50Z), 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/QZDA82154459.
Musica electrónica 2022 para entrenar (Movie)
Musica electronica para entrenar (gym music)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x306ee2b5b68f62b4620de1016573c8f12ba88505ca93813306e119f0bd983767. Chain 2 (Bitcoin): anchored in block 958054 (2026-07-14T19:33:24Z), 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/QZFZ72216224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x142a5ec0d2278abe2393157e37e839e9b9b7ad99943dc69f75eae69c38649932. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/QZK6P2236221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6561384e858456d9f93c710520f4f297750d07910aa47f8203a19955405b100. Chain 2 (Bitcoin): anchored in block 958681 (2026-07-19T06:14:54Z), 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/QZNWV2285861.
Mami Yo No Quiero Fumar Marihuana (Musica Electronica 2022)
Musica Electronica 2022 (Juan) Que Empape
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9103ee7804163b1b1fcad4c61be99ac9cfe94419ec702d9c5ec047d89b9033cc. 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/QZTAZ2240072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c907c3d7c94ed28c0433e6061f01b78ddf014873d9aeef649c32a1cc88642bc. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZDA52313637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x620ae26d796dcdfdeb1843fdefda5fcdf064612759945e555446c415669a5fd5. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/QZES72302386.
Música ambiente para Bares Tiendas y Centro Comercial
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8618bf35d01fb3d273ca82df66d18bb07d44c0699981656d0a8be0915e412f5. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZMEN2361897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0986f8ce6b946823b1d6845f0e7b65518dc962542e233eb499056072911b9916. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZMER2312582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97d0f9adca4d14f9b7c4a236ec9204a7011ada8a0d946becbdc5873b7765a34d. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZNWU2385277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3b22a4fda01621a9ceb57b9637029bd144b296c07ecde855f8c3e98ad79015d. Chain 2 (Bitcoin): anchored in block 958051 (2026-07-14T19:14:42Z), 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/QZNWY2322467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc47997081fc61e0834f33b4b55ba0ca9c3f1cfb04db67b05bc4bbe8f98a3bed8. Chain 2 (Bitcoin): anchored in block 958596 (2026-07-18T18:42:38Z), 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/QZTAS2311785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc47d061c21d623050fe7fe0837b12c8bff1e5f4fb6743c726ebd80373cf5138b. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZTAZ2370940.