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 0xbd8a829d5957991153ebf3798d8830dafd5cb0ad516a1714557358b935782958. 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/846d311a-d558-44f6-b871-2e9fb926fd9c.json and https://artists.proofprofile.net/proofs/artist/846d311a-d558-44f6-b871-2e9fb926fd9c.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 0xd770beb7cd64a7d3966f5455aff3d548b6de3158b703c10a34a6368dcb29c83b. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/QZMEP2184973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c179d1eb48089dd6c062c1bb49d96cea699073e25dfd938c56348b2c5adb3f3. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/QZNJV2140189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73404f732d5b4000c4c415d15d21677710d33b4c32a46ce282a7372376b0b81c. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZNWW2145517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e15d27c2ab8d8526020e43942021b895803758205334757709ed33f66f71024. 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/QZPLR2184144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9dda0fd4bed5883c4ae9bb9dd7e54d3bcf127a9d68a500ba57ff8d67fcd1345. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/QZTAS2115459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd765563d865ce066744763535bbffd62272cce2dcc9452a31d1985cd4c87283. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/QZFZ32255032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4716ca78b96e6fe81a0c702dd749113fd106d58cc7266d5d18f06fcf1c5ba255. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T23:11:48Z), 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/QZDA72220560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b8f25414c3a1880d4602f9f62ca0df8b266822f94b53acf407dc6549d7233de. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), 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/QZES52205680.
Lua de Sangue (Akaza, Douma & Kokushibo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fad6ff00af7062e4c00d187f814fefcad16f1e47592fe0292d1ef169602b75b. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZK6J2202955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x600900fcc2600229abf23e58e9e525a166121d046c32db6573dd282d7a0be58a. Chain 2 (Bitcoin): anchored in block 958474 (2026-07-18T00:59:09Z), 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/QZK6H2229655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d091621a06ead699da78338fb0262cfea6ce89be669c74413718093a89e8987. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T05:03:07Z), 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/QZMER2244435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61794d56debaf6ea74781b07e5311562130f167de7c7f978aabd07a57f4501aa. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZNWR2227766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4778ffddbcff883f63506a6fe38ab95be9f460fe0a8c3d6ee877f9bfc464b59. 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/QZNWT2200401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8309d7bab2d139118532539f39dce5cc12aa1a364e76475c0b3717cb1dd85656. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/GBWUL2390020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0621d571b69a55db1dd80d31fdf181564fb68c0d0e93180141fc842ddf5c78a8. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/QZWDD2483408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2cb482c739ee0a3a8520eb22b946e1f715eef19a9f01c790d5a669c5f2bfa99. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZWDD2483412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f4d63ca99a839c17d53abd1f4ce001b0bebf2cd5790ec264587e4d3dd225d8f. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/QZWDD2483506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc78ef8952498bf72feab19f40f7163baf5db7cee18549cd5ddbada447639228d. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/QZWDE2484258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe75f7b7e37634f943b17594de27cc23d8ced52aaffae902b864155a97f1193e. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZWDE2484253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa28d04b7d5b74c042bb78aa567382674183bbd9075660212563823912d1e7b43. 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/QZZ8B2410685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ec3451c120e657f94b368fea53a8d721f2dd31bdba17828f2945f92f91fed17. 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/QZZ8B2467757.
Bem vindo ao Culto (Funk version) - Slowed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x518040961565a2c555caefdb75e112c2476b59b96f41964a039b8421013ab880. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/QZZEB2416986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23b18ff15b2f982918af15d74ab71fa632b33923267a1b79609f05cbf6408663. 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/QZYHM2408251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x398c427d4006d0ea45cc731b6c24e543c5be39b9da7734e0856ae81bc321637a. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USLZJ2314105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef5417a027fe1c98186e9b25f24e82ecc0d7dad55bf54a1fd331fac4a8f2a3f4. 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/GBWUL2246458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa613ffda6cb37a0dcaa30b339d8c3deb6bedb21fd4a8a65e9b8066571aacfae7. 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/HKK972325996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6913bdd8e0cd1f27833f8a520bb0d62460a404b110169eb6b6f607f8202e3fc2. Chain 2 (Bitcoin): anchored in block 957011 (2026-07-07T08:25:35Z), 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/QZNJY2006345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b6f662c5fe29873093a0383563f35c85c7c2492df100380d5445d237b507477. 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/QZYHM2422845.