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 0x2bc814bb68caa82f1352791a6b5089b4660bbecb7d48d8520f890e9d3dfcd389. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/78519b42-86dd-41b3-b08e-8a534688e040.json and https://artists.proofprofile.net/proofs/artist/78519b42-86dd-41b3-b08e-8a534688e040.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 0x127cd7d31dce21d4135c5e50c5de60b35db5eff420f5dba2b25f179342e53fe1. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/USSM20301710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b370f9901a2abfc738451c93df588154b1732b9c0f98e3f369c2ef88223ff6f. 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/USSM10007873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7010005aaf25eb563335fcc8c535863f3d6847c49fd8b3f59e3e1c890884bd24. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:41:56Z), 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/USSM10007878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd30c64831fcb9c63c642ceeb33f175e4d8ebebf4f4cbfb9c44191e7907d3ce3. Chain 2 (Bitcoin): anchored in block 958508 (2026-07-18T06:27:01Z), 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/USSM10007881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebb122158688b6e8aa015c57d0cef8b0f6c31aa7c92e079691434812f53e4da4. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T09:53:48Z), 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/USSM10007877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2346cdd61f80ef7cc9067944c3451d5c7a783f3d5a352fe71debe8ffeb9d6082. 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/USSM10007874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97b8e9dbafdfb3c28f4fe8ebbb01db7ffc373eb912d09044ac752e96b8337411. 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/USSM10007876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea473d8b730f14d6453faf0c40d35c941bcd7884ad39e780e73f25f732889244. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/TCADN1862403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc32827024ba8049bdf2b2861abdb64ae5c9bc919192c0535324c86d6c1cbcc26. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T15:02:17Z), 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/TCADN1862413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80cfe7528c3656eb8b298419a3fd9c8a205b51208f57115d87d80bef37e546ec. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/TCADN1862417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d586b290f331bf3f267c7306b778c9661a336572faa737e5c02f9f2b1d24b8e. 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/TCADN1862427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x089eebe8135c4cebdb838e1f7f3f75e8971df7a78c9ec5b3ad17b1ff0b278edf. 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/TCABL1346147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x958ba655c17f466ff3c7f865eb457c4996227311c98430c8f4b802da63c14978. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/USUYG1221862.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde1b4c8599000e38e3b51e458e3c0fff28ec7403b55c18cbd839f3b43f8ed853. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QZD442000499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c14a22f96631d5eb521be0b497dba9e8f5a88dd50fec9fdb94a6c7645e0361d. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/TCAHK2378971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b370f9901a2abfc738451c93df588154b1732b9c0f98e3f369c2ef88223ff6f. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/USSM10007873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cdd4b318c472db41b3673777e3f836efea753d6b6232986a4d70d02d5f4c061. 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/HKE022234756.
You Bring the Freak Out of Me (feat. Da Brat & Kandi)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4c99b8104ad8231c5033fa423700dbfaf43137169503da5461c0694c94d78d5. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/USSM10109189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b370f9901a2abfc738451c93df588154b1732b9c0f98e3f369c2ef88223ff6f. 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/USSM10007873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b370f9901a2abfc738451c93df588154b1732b9c0f98e3f369c2ef88223ff6f. 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/USSM10007873.