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 0x4116d0a17149b9ea1f576020e3cf69c76c8055d218452e8c78dcea2dfcc9c051. Chain 2 (Bitcoin): anchored in block 953791 (2026-06-15T13:40:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dc2cd97b-869d-447c-885c-d77956bdb888.json and https://artists.proofprofile.net/proofs/artist/dc2cd97b-869d-447c-885c-d77956bdb888.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 0x1a43ece6faa94619172f1476f70d976cabd059a1e64e0c017d4eb8c88707ac1a. 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/QZK6K2129192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d8b9abebbc9ce928d244018f7baaa887017343f5827e393461863e0d2673d48. 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/QZK6K2129193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d21a387530a80f6384c26b1e297c8563ed494d3356bedf01ad83652528e2404. 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/QZK6K2129195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1397d78a0c8253c8c8139cb97d0ae0a8b94d169d07284a43968e76fe54d8bac. 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/QZK6K2129198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3d478b99d21135df1f05fb256d5b885dbfaa9448bc5935967b882ee3e67ced6. 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/QZK6K2129199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e05d26458f05437282b180b609b7848faf7595f773badf4bd0e1e6ab80dbfa8. 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/QZK6K2129200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2987e1ba1638528f352dd294ecd1cbc7d86ef300033a8cca12bb46a767917bfc. 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/QZK6K2129201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf23aa76ab3e3e11bca49f2792abc372a41e77d9493a6203dc18262c08b44ea4. 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/QZK6K2129204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3de8d69a596d541e7d375a7915dea6f7a0cb294540bbab73d1c1cf03629c2fcd. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/QZK6K2129191.
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 0x8da7d8209b4f3ff41dc921affae2d566e5327adb46a6919ba978aebb3d4ec556. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/QZK6K2129194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34b8e436579a841ceb346155c50408d4df0752d50b9c62869eccfdfea750e5af. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/QZK6K2129197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61754c7d8c1207c54937f3d4d2c38bc355a15b75bb78306fcc9898bf23793ddd. 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/QZK6K2129202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58a960ee515f62bb1be51524f006dae7fdbff7a3c94dc4c6681af9ed3f114e3e. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/QZK6K2129203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee2a3f147029c96e790c1c061861b56d222cc191a06c7f8d92a83d3efff8668e. 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/QMDA72176741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb771beaa755bf87ad1e146c1dbdb8245b6ac5e0e900cfa091d4ee41f19702740. 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/QMDA72125387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5e7439f9583a76cb3b47cee0dd6968f010fdba5c7ecf89607a64077f44fb074. 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/SE6TI2179795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd5ebbee884e5ca1415c0c3381342c8c57e5df7e6ec9fe1a42f4b6a05ec49e37. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/SE6I32184049.
SIDEN DAG 1 - KRS REMIX (feat. Ego, Tommy Vito & Benji)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x467a7b024b389157b431192ca91480b63c471d4de6ba875bcb49b31471148f34. 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/NOD7N2101041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb274fef2bf42af8c196f4f587329f1dca2e3bab98b2411f41365aa051da01834. 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/SE6QE2134346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff805f604e13a12481371ecf3cbb6eafeafea1507b0fec38a13f7e0ee353e5d5. 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/QZP7F2109913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71e4e00ab41f06b1be5ad938e7e9931c9bd22c0dbd9fea1bb351cd2248a0a687. 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/SE6TI2011354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x572e9daffb1000408db4c1df098d983271aa7a5705c1a5a7de5827331a92918d. 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/SE6SA2039166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf425c1797fff9e9ae8aec911023119915bed928ea32320ce5e4f566a22c93bd. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/SE6QE2014369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc407afd8a60e004805ad562ba5801f2d4709c98847b7bc19d339771cc1cfce20. 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/SE6QE2384418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7edbd3c3f3e54a39476b1326a1bd4102e84d5c49988b6f1d9024ebc080e19849. 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/QZES71836057.