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 0x96b89252c76351641340c24f9bc2eb84906ece687b6a03165bb01982c72a84db. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e7733195-747f-4dae-87cc-1c5562ee0090.json and https://artists.proofprofile.net/proofs/artist/e7733195-747f-4dae-87cc-1c5562ee0090.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 0xcbbaa886af4badaf415bf52e6913f137252b6ef6e58bc58031bc9e03372b65fc. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/USLZJ2041339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f2889e7c5191e4067276d3bf9c24d7ad49aae1a68655ff3ae24ff745f434204. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T04:44:13Z), 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/USLZJ2041342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72e9f3339dce9a0ef36dc82ced66fa84cbcc4f991d2e3be28134433750f78252. 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/USLZJ2041349.
Questo L'occhio - LooLoo Kids Canzoni Bambini
I Versi Degli Animali - Filastrocche per bambini
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6901f37331d19c404c01f6c849cb4d185cf9f975daf040472fe0f92310e969ea. 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/USLZJ2091035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3a2bf48ddf6615b6a03706bdedfe370f750ed266284f8d7b8f945c48ba2e40c. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T16:31:52Z), 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/USLZJ2091042.
Un elefante si dondolava - Uno, Due, Tre
Canzoncine per l'Asilo Top 15 Filastrocche per Bambini
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2962e7c681572f65d652edd4943aa012b452bbaf9f6e362a60b21b14d2dcc3a2. Chain 2 (Bitcoin): anchored in block 959009 (2026-07-21T14:48:06Z), 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/USLZJ2116813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc365b5560c0f9a431fe8b17dad45c8c67ccc131d2905a0922de98730b6ad703. 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/USLZJ2116821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x658452713357769f63d9366f8057a2750c234aedbad836a75cf322fb2cdf73bd. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/USLZJ2273792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe07d2dfa5e5a464b522706fd10d617c1a197a4ecd6adfd19f974b2ff952f2bcc. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/USLZJ2273795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x605a0a464d079fa81bd8822878cf0b74882540657f96cfa41e49ce2d18be0f90. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/USLZJ2273796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc5dd6ff5eb11b01be39ec961dcb02dd2f0895c38061af48e7d7641f3a73cf48. 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/GBRKQ2250032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdea5846561d1147090146fc92ec38c9baf9eb0a925b00bddad3ac45726c18405. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/QZWDD2282083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6eb7a7ac97604df7e672e45c5843f313af2e436319d2a3f7bf83adc35291e834. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZWDD2282084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e2dadfcb8c8df0638e0d58a0dc5d1259a6460f86875b611270ac36eaca0a9af. Chain 2 (Bitcoin): anchored in block 956620 (2026-07-04T07:11:13Z), 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/QZWDD2282086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55b36138baee7b90545697b63605db16c32a3ea01ef3a073ecbe6803d6034daf. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:07:35Z), 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/QZWDD2282098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51fb8b3550cf2e6e3c6d389786863319fb9d3abb7f22679a5078c902a447309b. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/QZWDD2291386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x333fe5131b835d11657ca9c3f984850bc02b149179bb17374db8d2817155d62d. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/QZWDD2384605.
Canta e Gioca con Johny – Canzoni per Bambini
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1340f76f7d5bf3eb617b1da088a90fae70b9513afeed5210c1cf3b8d739eb84d. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/QZZ8A2574420.