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 0x95fc5725475af2548be90ab0f1a5c790221932c6cd8f002a1cef1f4d1c608b72. 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/062cfbb6-0e84-4c5d-8277-24aa426e7b6c.json and https://artists.proofprofile.net/proofs/artist/062cfbb6-0e84-4c5d-8277-24aa426e7b6c.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 0xdc5f6fce411c101b01968ac183b50ad1c4221ce297c9d55b38fb6eab6df23efe. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/QZK6L2388221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9506a68535bc6067bc04eb7135b191ab11a4c9536c775c079cf7107561c9620d. 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/TCAFP2158577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8b02a99bcff0199d2c2ce4cad4dd5538d86e807eef663a23826627afb7dca4a. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/TCAFP2160630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc486c3c2b3487e18379f8e2254582b3a97800237cd62125f3112f20824681282. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/TCAFP2160636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a8db9f186bdd89f2152dda3bf29991df08e808cf1f2e164134a7249f58a8668. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/TCAFP2160637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc46d789d0fe47fc9694fb7d0990b33bfc0cbd1a6f3a2ebd81f1c2e7339db4cf5. 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/TCAFP2160640.
Abusive (feat. 392 Lil Head & RealRichIzzo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0eb033a9f54040c280626559f03eb8cc4262f02fb2a2a97aaf787321375fd01a. 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/USLD91735239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5b69fee58eec1416e91a0dd19d1911b3cba4cb0511c51e1e6dfb955d26e0209. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/USLD91734329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90a528944d36d697086b3e4d8622e2cdeb85ed700d7870f4bf0d85dea91bfd6e. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:22:50Z), 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/USLD91734729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17d7f9d9f74d8f2ba42d44fc3d8c393a7c5ac514fc50cab2704d76a1a8a385a9. Chain 2 (Bitcoin): anchored in block 958722 (2026-07-19T11:03:50Z), 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/USLD91737235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52a94cb791edaaedd71d8d9f25d7d90ad9a06121cacb821f867c3edd83f5345e. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/USLD91737239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1c89968e5821de1a1c378da14ae32e86ce5c26c687ce4c8dde35a26d6d37cf4. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/USLD91737245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55db81955e1d8bc5779bc00344a846f89e6128c68aa7126b2d7feaf7b27632cc. 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/USLD91740231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55db81955e1d8bc5779bc00344a846f89e6128c68aa7126b2d7feaf7b27632cc. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USLD91740231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68770a83277732e804916a2c071f9e31144c71b8f0f235b3539dd87d754c3b01. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T16:25:46Z), 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/QZHN62377753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c29b97dc8813a9c1931dc936eb8ccac9854430b9e1ddaeff560b0176276844e. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T01:47:07Z), 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/QZHN62377754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x306391be982e6bfa2eb81daa9ae0bc3fd3791371794fcba17caf157854d80200. 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/QZHN62377760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42bb67f757391d6324a3c73d0d260cb826cd5f67ae9086cd33b78bb7205ee872. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/QZHN62377766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93710f7a4ea9913c8450677c62dbdf8868f5aa6a51546c5fb80499f7d8db4a99. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZRD92303389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62fb2103baf72341e5e0aa34bcece4b1f0b1528ddf20561e4d89ba66f7b806b0. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/QZTAY2380167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe537f59bf3d42115dc33cb6cf2d26f09762e42d5ecf123e7b3657b6e634c4521. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T05:55:09Z), 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/QZTB92588784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63fd258e80ef086c86f6a3986909d7a95e740b917fc01da3b2865090035d7d78. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZZ7Q2531779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c23c79dbe8ecd3c3cc944bf87c6c509369f040fdf9d390eeae635f0289595bd. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZZ7Q2531781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2344a8e0f54ae3d4e6a23bc4d88aab1377a1f9865189e65bc2aaf2dabe2fd08b. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/QZZ7Q2531782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05bbdeef5dcc3d647e3c7fa69bece29ca54e9fa6c6619ccb44696f0c96a333dc. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QZZ7Q2531786.