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 0x3b7631707dc593929ba903d7ab561a21912ddb5f8c835283e61013bcc1b4d9d6. 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/a9da43e8-f97f-49cb-ae1e-a3f401bd9816.json and https://artists.proofprofile.net/proofs/artist/a9da43e8-f97f-49cb-ae1e-a3f401bd9816.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 0x6ac826fc09830d16bb2b52c5ea835db55320ba0e6f6712e43a413da79f947c5b. 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/KRA382319849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5883a3d89d3f959d7a8191e5b0e77ab564e0d04d7d442176bb410023ff4a4fab. 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/KRA382319850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa745b6ed720009cd70c9fa0f97e71f47fdda9ee13470898ef36449e8530930c. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/KRA382319851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb016175dd56165bde7e0fa48a8af6719de8fa5b71647d6f9d493012e70779f40. 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/KRA382319852.
Fall In Love (Feat. Uneducated Kid, Leellamarz)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaad40c6773b554f5493ca6ae4a0b4b95f4a751a04addeabf3ad6c0b6019c0eae. 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/KRA382319853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3034300a88c7b61b9dbb2b773244d564a6a2cbc52694258043cdd06d942ca4bd. 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/KRA382319854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3e81e7660c9cd2be3fd836f628028145573dcfc0b136f9e07dfe51da4fa20d0. 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/KRA382319855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b88054aece86eedec27c04b4effee02f820f6a7f15a99b7020b648c2cfe4412. 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/KRA382319856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3a7ee187f990c9402baa713eccc18bf036e6d57418edf5b9b116e8615fb883f. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/KRA382319857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f0d3885a53b500802a998924f77ed0f863136f8f7e374a8a7a42b1d6018241e. 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/KRA382319858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4583c6fc376e4a7f6ce8bdbef7c18ff76daaf25881255e20a765be69ead681a3. 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/KRA382400452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4899617bc042b01ada2d69d6f41773e5353cded79c4fab17c7c840e0662d665. 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/KRA382400453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeedbcb874981f1f59a2ac1dbf148f9cb688a6b0d65d029e84e2424cbac9d4dd. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/KRA382400454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77902a1ad638ca01d8fbd0543ab3a63052a35d5a01ec0e8cedc8455f7fbcadea. 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/KRA382400455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47c6d1ee88b45b5ceeae494de3bfc09281df17075538d50a7a93ee952929e06f. 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/KRA382400456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0ca34bb1a94f4344f7767a66335d96dac679118a44235f8c2e50faa0fb886d2. 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/KRA382400457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd42780601fafc7da1407f8ffd728e23c814371cd1483c07145eecf393afcf8b2. 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/KRA382400458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x781a42980d91b1c9f279f5ba702cebb78b85ad04e59b27a08fbd0246af3c5903. 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/KRA382400459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0793c0d0f290ef6c2420b14934eec203d492ac851d2b0584dd861cf305491e7a. 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/KRA382400460.
DIRTY GANG (Feat. UNEDUCATED KID, Polodared)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x003a304a35371ae947af6f1a986b6cdf7d05fb7639d6a150c4205a6344ff0b7d. 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/KRA382400461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce0ab28a8ccd1941fbd9c5c6399efff7fb6d0a9ce80f76bd4efff7deb61353c7. 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/KRA382400462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94a76e853e727085dd35a9bc80bebf964c6ee60b5c5ea2d20f44b650ec9e03ad. 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/KRA382400463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57bd06d58810437165cc084bf1f3f83f2425dbaa5a229fd600a8e7224476c6ff. 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/KRA382400464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fce4de6978f86ac6f21edaa34a017174f3f2caace91eff1c5d3102f1abe19e5. 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/KRA382400465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e102948e3a655dcab2778097ffe19d87ecf2f6ab7cac01c4605c49a39249698. 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/KRA382400466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbeb521f24e70ed3802c8a35e28664e127aeffc5307e8fe5088d035bd689bcd49. Chain 2 (Bitcoin): anchored in block 957801 (2026-07-13T04:17:08Z), 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/KRA382405818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1828eb7f28aa4d97b447c7b00ada0d9b7255cfc27b752f19272f31a1f6fecf15. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T08:56:51Z), 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/KRA382405821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbce42c22c33242a20e1a486c95e8374028a43414a45f83e05d194d369082fcdc. 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/KRA382405822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c31119207624edce6ed7fd9c57c9656eb08887eda352efb85c834e1bd7ecd77. 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/KRA382405823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83c25f4d44fbea4f40e0c7d9ddea2b0945c6e8e5e33bfd857d5eaceea8f188ea. 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/KRA382405826.
GRIM REAPER (DEATH) (feat. Bankroll Murda)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf03492350ea688e88056b439dbabbf213d358b4b4872e80af8b559f1cfe9a3a. 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/KRA382405827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3e4cb711b883770b68f3c08d723c2ed08b88d8632b63724ea452aead801dbfa. 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/KRA382405828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd704ade1725dc67f2550c05ddccbe3bb110963df299fa86f862305adb58f4868. 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/KRA382405829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa00a15cb90c47aa921f9376b49042b8f543d6728285abd377f36d53ce280854e. 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/KRA382405830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9db6b775173eb2f8f406c673b300f26a308e2be62d00d43f7e753e6942420ba6. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T08:02:12Z), 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/KRA382405831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a965dab3dea41d3fbd8d300ae996f48685a43fda0c3c17005d898240db4e8d9. 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/KRA382405832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b48780a88b525f1bcfc2183cd00505cbe74fd8c3a9153fee0fa5d4e4168b67a. 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/KRA382501504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0bce77ac72b7c0f1aa6e4bdfa5a6d3244fd60a35acd7eb23280b883182fc289. 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/KRC712300023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9b5212590e08dce5741c2152174986a9dcf598f01d61b357bf554781c165278. 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/KRA492201237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6128c78f2bc456fcfd5d206810d09a925b237c226029238d919fef7e44d5c791. 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/KRA492201311.