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 0x2adc314ad3f2c4d665ac20e5c53f4584749a94f0da852cb7f7234840d7ce6bbf. 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/8213f09c-cc4f-4891-9fea-946aee6df7d7.json and https://artists.proofprofile.net/proofs/artist/8213f09c-cc4f-4891-9fea-946aee6df7d7.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 0x8cb5ae67b530b61848558f35a09d43b0c045558af4e22233aadd0e4dd6ffdc26. 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/QZTVM2322997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc15dbac32d13f156e65e1789dbead97de782b6f013ed1ade65a73bd27a76f6b2. 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/BXIV82254144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15ddea623ace6ee9c283ba7825c9c2cfb1b34badd44c0cdf7666f23868b84f51. 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/QZNJV2453755.
O Meu Marido Que Me Trava, Meu Amante Me Relaxa
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd539d0d2f9753259b00e048b78ca6100921bba4f24d8f8ad809fe3ea08ff2091. 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/BCD592400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x115cd78fde854e446a12ac8f7d1750699e6ea3ba24d40f6bb172eb3e9eaec780. 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/QZNJV2381888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb5aa6418295905bf4646f8f023501399c62966b75f1cbf94a4f938cde70d31b. 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/QZTVM2294447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9585f98a6798a215d2133f3794e81d3eb88a059b6c95422d7413df3e9fe1542f. 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/QZNJX2214723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a87edcf4d6c0b1ad20fa36ce9500fcf32564634045d30e710a4a45604253f35. 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/QZHZ52271198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c5909439e5af5d3eeb67ba718999816a368e22e2fc60369474e11588b61b9c2. 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/BCD592200052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadb52fb78941e58e22ac8d5b0bc41af377cd19b4b4f262ec2264c6c74d7d7eda. 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/QZHZ42221805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba9fac6304e23a41ff0706a00626ecc483367799752ed906c7eccfbb7ed036bf. 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/QZHZ62172597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdb3ac32d0397dbac7ae9afe7e1acba99c2b2db7906f67eacae297f97d57d5da. 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/BKCMX2500055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c0c7f3b25e530445b886ca6e78892fcfc3d352ea1b96c2f343ac7c578f2b36d. 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/QZW9K2470216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6aee3a08a2c72f3e643bdeb455020a30bf72cd08f20f135a6cc7178bbc093ca2. 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/BCRUK2400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda752c96d4c953270be0da818acb66a1734199da50ed83ee58f602306ff87859. 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/BCRUK2100011.