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 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 0x355d84c5bc060da41567dcca75158aefba0e415f14ac8958169f6ce14bb8d786. 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/f8ae275b-6544-4dd4-88b8-ce4b0e05025d.json and https://artists.proofprofile.net/proofs/artist/f8ae275b-6544-4dd4-88b8-ce4b0e05025d.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 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 0x21bc5a2260fcfd4a74bde1c611b88eda1b8af91adcfadf0c2df5778b48236496. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/QZK6H2419683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fbf450ed2e5819772f97ee6d9ba2097db2ffb4db1c07a39ba8e33108855d7f6. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T10:05:23Z), 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/QZK6M2464320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x532a32f80618c0e69cede961ef426f5bcba8acf73b3aa8443e162d37a8953d62. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T10:05:23Z), 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/QZK6K2475066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf81f6e2ed8a28dcb31af9534404bd7476d2cc472c56f8116455123fec004ce85. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/QZMEQ2244191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb238f564940f0ebdebe972ba38c3f1488ce3057ef4037dac1b673aa83642afb9. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/QZNWQ2256165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe70f88bc44398e11529165ef8f29569d1a1999d74f7d305df83798ab0acbcea3. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/QZMER2330181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0af261a605bf0d87a52cf9fb001983aba187bf508dd9a75f21f4980e123e681. 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/QZFYX2423599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cb67d3de765084304ff8ce608ba487dba04b51d142a79892c1a2dcb958a0a8b. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/QZK6K2476139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb177a203529ac79d42ef1fec46a28c1896235e786e7e5c270af8bbd6d7431f7. Chain 2 (Bitcoin): anchored in block 958087 (2026-07-15T02:56:49Z), 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/SE6XW2139989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75e925b48b2100476dee3c959c96eb98b58fbe13434dfacf457f8f236cf18cd3. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/GBMA22441523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0be1fc9e6dcfb0ceb7f0062abb974fbba35cf6a3ac6337332902e49016edf932. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/QZFYZ2547025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ecb75928084a40f78b3269f7b640ad892c4fd3d1de84235371327274b99ca7f. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/QZFZ72515873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x999c371c31a3232d84486d1235393a6ae5bd722318f3d75f0ebd720ff8537a6a. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/QZDA82577357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x275ebb83ba42392f2c2650bb7abc59352df41896c93c078fbd5c52599767954f. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QZES62549140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff0a84295cd772c2fdff8dd6e68311ad16d2ca330c72e436f2218a6abbe8bee8. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/QZES82551128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5232a15f3bce0a750ba6e8686fd5e9b6a0797c22bb9410266d30f11cc6f505b1. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZHN72550989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x121f303c0a355e70084d98c8d3faddddc3e5926d9bfb03bb471f75015571c211. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-02T22:05:07Z), 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/GX3Q92530600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2c6e6913d545c8a8f3f86bf1d771f7c350175b78c6d34cad4a938b9910f1ed3. 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/GX3Q92566300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4881b6c0a1cf443d8c8708b04f67de07c47788a5e1475e0fe8a2f3aa269eea08. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QZK6H2547142.
My Verses Freestyle (Short Version) [Acapella]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cc62f68a26ca4467f2d52f2529762af83418ddf1b5b39dfaacbb9f246f4f4a9. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/GXHAF2507061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfba29db385935ddc71681534f9bafd2e9214206bc92113c84d91a0ea00afb99b. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZZ7R2501909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff0e658598cbacdfe138cd8ea7fc41b3c979e614300be583827b4f05342e092b. 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/QZZ7U2520416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42ce07c4326d04315c2c03cd2ef347558415fc253bf96f6db2542e2ff987e8c0. 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/QT3EY2543264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0f14423ba287016b0bcc9e2fbff8cb0759f88e5318fd96363dd1061f9e93c41. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/QT3F42568339.