DND or Dnd may refer to: Arts and entertainment Dungeons & Dragons, a role-playing game dnd (1975 video game), a role-playing game DND (video game), a role-playing video game, 1977 "DND" (song),
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 0x8ea0f509411670c5c5d3a11640744e4afe5db8da70e3ac7687d81e328d5b09f2. 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/149b6b08-4e99-49ad-ac3d-5939f3387c76.json and https://artists.proofprofile.net/proofs/artist/149b6b08-4e99-49ad-ac3d-5939f3387c76.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 0x32761a2ad0b51ef0e4d67cdc74098e5251a03629854ec0dc2a5e5f412a23bb2a. 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/EEXX11801001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6f27f08fe7e9dea9e763dc5b2908e2c754f93ef4fd7e787aff0d1b6abd22270. Chain 2 (Bitcoin): anchored in block 958086 (2026-07-15T02:55:47Z), 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/EEXX11801003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d1595ca276a158fd1fc5784bbc91ff3744c70dbf462535a4f3d34e061b3880e. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/EEXX11801004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74c383373aee8c3375039d742722c0afccb175408a6d606ced849429e68d024a. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/EEXX11801008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3733bfac4f54e343bb380ed784c5328b966c0a1610b6ef4fee62637e3d91891. 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/EEXX11701001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b340288a6d2459a511744c83bf7d9498fdb5d228b1140c22150bfc44c95e2c2. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/EEXX11701004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26140d402959baaa204e925fb0a51164bddd9b1e7ce298d055271dd3f40bc527. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/EEXX11701006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf488bba95926f659549f8efc9bd6ce39f733242681ff7a9f08babf6547ff0ae. 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/EEXX11701010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07817901e5ed8026363ea1988a472c347c63cefd3781c18efd4ef4736db261ce. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/EEXX12000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x762cafdca3dd2829291b96d20d850c6c5affe34caad77f81fda1f3bfdc2c97a4. 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/EEXX12000004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed85513e4bbbfdce61c37e6d287aa58c1149da88148f77a5afbbfb09f713d79d. Chain 2 (Bitcoin): anchored in block 958830 (2026-07-20T05:30:12Z), 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/EEXX12400201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaeac734ff4f08a5e75c2c4cb06f5d8b12484d0bace86b1f17655df3e75f752c. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T20:44:14Z), 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/EEXX12400202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd36000067aa8cc0a02ebfbd479f94945fa290dcb19afd10c7f8de07c6ca86fa1. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T07:48:27Z), 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/EEXX12400203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa66e23a56fa710235e24ab047ae3702433089e671081b9928e287a0f43c2d260. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/EEXX12400204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9c8386c0cb470a128ef4e05c73b167adacb4568ce3c12d8b975683b257f4fa2. Chain 2 (Bitcoin): anchored in block 959089 (2026-07-22T02:17:57Z), 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/EEXX12400205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa67340ffaa332ef06c82da18465df32e9b7fd504b05f7ee80b62da2f339beb0e. Chain 2 (Bitcoin): anchored in block 959052 (2026-07-21T19:50:27Z), 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/EEXX12400206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0d4685ba304adf08386136866f12e6504b462d876dc5ad385a5aba1256e43e5. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T19:48:03Z), 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/EEXX12400207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x626e2f348153b2bd954db9041e855b8f2e1180a4cd7439e24024c6d4718acee2. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/EEXX12400208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf7069f8d28798fb04e07d138df7aa3324afea6b40dd3ca845cc4f28237de9d5. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/EEXX12400209.