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 0x097779baada61a140064164edac4c860e6b7203b1a765e83916633d834d36ee1. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4d7d216c-9b9e-40cc-bf85-58dfeb9e9f68.json and https://artists.proofprofile.net/proofs/artist/4d7d216c-9b9e-40cc-bf85-58dfeb9e9f68.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 0x78255de397682377652fb13b7c52cc497b1accb7d88be5a2558061b168a47ab4. 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/QZFZ32043690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17eee0b0b8059fc1145f4efb9c95578dd2776c5863bfaf18e6674d22146a3847. 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/USASN1502088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x281e8fffd8bc0b0783cac2a0a4adc5060572e461cec58a193011aede72e57e49. 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/USASN1502104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1854e5ae7c93477d4640ae8dcac30d41da26d2e1ee6bdc1dcb456854e35dd1b2. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USASN1302309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x323a9356cab79e0620874b440777417ad281c6f89360ee879033626ed3e546f7. 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/USASN1201764.
Smile Again (feat. Malow Mac & Lil Yogi)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x546b48a5696ef157e7eaf42a8a2c795c678af43e3c9e3871a20430942d153999. 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/USASN1201773.
Lonely Nights (feat. Lighter Shade of Brown & Selo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09e759dc937bf9a9fee693080f51a70e1bd7a0f1642d968ec0d77b2db67df419. 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/USASN1101125.
Should've Been Mine (R.I.P. Remix) (feat. Nate Dogg, Lighter Shade of Brown, Kid Frost, Proper Dos, Lil Blacky & Sleepy Malo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08a97c8eeb703b44d689968c37ff0ef941687fc6af6d9f67e1ee0005522dcf15. 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/USASN1101129.
Don't Say I Don't Love You (Remix) (feat. NB Ridaz & Ne-yo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b8863c12d24f8de50a07f463cf79c8e9e634e0f055ca2827f988079b49c4375. 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/USASN1101132.
Gangsters Get Lonely Too (feat. Lighter Shade of Brown, Sleepy Malo & Lil Blacky)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ce0e4b188c9c7b8d156e0a5fe849d82c33baf3b1f915581401464766c00b481. 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/USASN1101137.
Gangsters Don't Dance (feat. Proper Dos, Ese Saint & J. Knuckles)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd044b3777e07ff4d1260a4ba49d7c5df8c292277ec0a868d54ae13c8222823db. 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/USASN1101128.
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 0x7dc6cbfd9eec5972a99db72cbd827402bae77f625e7ef356f2bdabb879e36449. 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/USASN2530001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb26fb39088bd827e8a88a090b0034ed03c2e62e36fe50cf1f8d14869723a3daf. 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/USASN2530010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07637d73ad2806fad55776a88452ab301bae881d4e7b75c2e41a1ff733d8a436. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/USASN2530004.
MC Pancho Presents: Chicano Rap Made Me Do It
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5db3d783e10a6a2c6cc299899121a322373d5daa8e16de46b3e01fb61b275398. 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/USASN1300797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb69a7aab0d40723e00b8d667d0be05298539b63a55f54570a89d48fbbd4d3af5. 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/USASN1600943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6dfa40bddf6e00eff1074008b22d442455ca3b3eeebba184615f71c027ca62a. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/USASN1600938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf34b96196b277bdf8fc7c365efd2aec568348bc9f937c365ed7fd0ad5f49675. 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/USASN1302774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fc34faf13409abebf06d15605c339c72548323b17c7c18a1822b29cff7530b8. 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/USASN1302777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb35d45209de513f7654b66051342fe538e382997b378569d36907094cb7530b9. 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/USASN1302778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1439003d088f89c64d9cf9bcd6edc063246cd96a7b05325fdf30e456c6f13056. 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/USASN1302782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd797b2c665a327e6640439400b0a666ba16446008c48a5858f26c3e661db8d5e. 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/USASN1302786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa226b917cbb80368de0b9bf995f35e5b5625da5acc6daeaf43037fd5a76ac57. 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/USASN1302789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56da509298f2f420bfde71352ec6cf6bfa7c28e985a34a1d5e1cbba023415103. 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/USASN1302792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaced55f12083709699c771c6059289b6a2afbd377bd2e4670a353cd439165112. 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/USASN1302795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34833b878f196df3ab24df8978c07139aefa6bcdc33488fea6f349ec1d3e2468. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/USASN1302779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x878bd31ead2d3b846068e4336bccb3ed7cec86c863d82ff3d2e4f2bfe25ee6b9. 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/USASN1300154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x982d3841d3bd2d2338d63394ff11c602fcac61409cdac57d61176f27028e86d3. 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/USASN1300147.