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 0xd7f7855e2b1c4f9ca37485fcdc7d9b2543321c19085864280cf4a2160438203a. 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/c7b48ccc-6fa5-4447-af9e-ee69649b750e.json and https://artists.proofprofile.net/proofs/artist/c7b48ccc-6fa5-4447-af9e-ee69649b750e.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 0x2ad0e5fd953bdbd995d4dc8c4ef963d4285da4a5a24235b435dfcd98bb47fa5a. 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/QZK6H2136041.
Baby Face Nelson : Hosted by Bigga Rankin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf03895676c93affaad1e7117ca00410535edc2992f6ba6f9fc28934707b1b6d4. 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/USUYG1278857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x335dd5557dd425ea0d10133c31344a964e19f28a74b3719e86f2c86ec0d1f2ef. 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/USUYG1278859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f3f6ca934d5adb9382181a0d9b0dd8df27e15d278762b5972be1803109ff0ac. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T19:51:23Z), 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/USUYG1278858.
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 0xbce2991ec07f15a3f42383d4ac943ffbda68a2c4d5ee1a3ecf0d54ed3a72c1c4. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/USUYG1272524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2eda6ea0268f12482d5fdb5057fee25febff6ca6b2c58d042af350cd8a32140. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/USUYG1278861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a21b6596b10588f4612173958197948006adaab29792c8601429ba0ec851481. 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/QM24S1911436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b677393ea11e63ac82ca246eb912ef8ffacb639921031145e9fc85505c9343f. 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/USUYG1269887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf57824d662305f1c0668684721f96e2cf2ffd331f98cd61c499ce4667d2b5550. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/USUYG1269893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05f6ca913361bd9fb860a231b345284dd421af6fbd36ae6dda0ac95c7e523de1. 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/USUYG1120695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7059f4bc4423eafc32680d67e22e6b058ee203a5e0d43ef3d0da157d31befc7. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/USUYG1120696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe084344bbbacabc2c074dcf71232505d58aed747eac2c49b29bfc4e5eebba87a. 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/USUYG1120699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb249a1b24efa227a836d37158413de96e3785fa5764b70e44cfb10e1edf1a504. 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/USUYG1120703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa65b036419f227557410a44bb07c29b743acb0afcb8aca5b2d9405d2204cec75. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/USUYG1120705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x874544c86eb249186800828cbcc233bdb11efbc3eac06c4aaa441b4b552d18a8. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/USUYG1120700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedc906aa1a728399bdbd5d1f0892944b2e29d953f7a6619f0c23a11611d3537b. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/USUYG1120701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3b00e289483a6dbfc21332a1151a69242f511dfacdadae02016cfad58060e1f. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/USUYG1120704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd88668b2729e4e5a4a73087a1f3909d4902d7c0554b6f99cbbe9ca5893d6faba. 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/USAE81600823.
From Da Gutta (feat. Xvl Hendrix, Yak Gotti & DC White)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76e0f6be0ad6fc3edc14dce358813988d138ebf1a42dc85b953476ec53f009d6. 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/USUYG1175994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2a91907aaeb312c9eb9c6f2b6036fbf061ebcf379debc3c075220eb2b368620. 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/USUYG1175995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f2d4fb4c32d8e7a6e4f6f45531b7c1ff3fdaf5fab7199428cda93a122c20927. 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/USUYG1175999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dd25655f06ec9c806134331fa7762929636952f99ece3126b18d6c414332ed0. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/USUYG1175990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76a5e1eca57d200ba20103defe902e1d7088ca52304f55e0e03fea3171764238. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/USUYG1175991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01f11f39544c9e2230845faf771628433cc60888ee3449409f4573ec0f9d5e45. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/USUYG1175993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa75e0dcd21c238cb2c5be7135f101e01307671b0671f1cd5373524d61a0cc101. Chain 2 (Bitcoin): anchored in block 960193 (2026-07-30T02:05:19Z), 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/USUYG1175996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x064bce55b1ccece071fc0fdb6795f8e546a9038488bfc309c6b5231b2777d346. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/USUYG1175997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x682e4c38af670e2e90d526d39c4c5318da034d0f303c3d9a82ca0388eaf9ac89. 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/TCAHY2420003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0356ee00b1620549b4d947eb879e131039c6bf24786a881dc02ceea99945006a. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/QZRP42381293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67a694bcbe91a89f79046361b6f99899c854b40a355d89b2268fa3021f09cedc. 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/USAE81500609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44bbe48798a7060b5be351e741aaec12d4166af16b0c6d56b09a9e056ab63969. 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/USUYG1113668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8da565dfd650a0163b6d1cf682d161410c41baf1fc8492646efe18e8641aa1e7. 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/USUYG1066402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13f0a2c59ee13013704f16dffe1cccf323b44518f7d465757eea3000096c0547. 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/USUYG1101557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x025bff79ebe38c9325df5b93bbeeebe698fd30381070ea04b9066ac58e4d47da. 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/USZEG1500641.
Time to Get Paid (feat. Jose Guapo & MPA Duke)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba8a336a58db9cebd21cc5bf17639d08e808fb836883f1545a41cb2d48d8e5f0. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QMRSZ1802348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdafff5a24fddf144222fbd0033b9eea0f24c4dc9bd4f2f2cdee073ed1739bab6. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/USZEG1500643.
Pourin (feat. Peewee Longway & Jose Guapo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0298a370aace21c352e52c0992b9b43d758854b9b09ced65ad3a89ff1db7c0ad. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/USZEG1600009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbbc4143c51501c03a04d59c67b5faf87d8b58a6c28c312b5ba3446cd50f96e3. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/USZEG1600010.