NVM may refer to: NVM (album), a 2014 album by Seattle band Tacocat N. V. M. Gonzalez (1915–1999), Filipino author National Videogame Museum (United States), a museum in Frisco, Texas Newhaven Ma
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 0xdab53b9c0b423a1065f78dd692654d3ba0ca314477919b758a7fc1d18792f60d. 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/e3327f1e-092b-486a-82fb-4327920b7b57.json and https://artists.proofprofile.net/proofs/artist/e3327f1e-092b-486a-82fb-4327920b7b57.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 0xad604ed592b55845c9a160f6eed32d7cd29c471bf0570c3ae6d8421bc2bf7575. 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/SE6XW2132275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f9e792ddf9d069b0de70f7f2c26d0c955eae5ccd76387e27f1d428fc8c03297. 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/SE6XW2132276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2146235184adb1a03a421ea0e1874b68cead617d8ad0e7faad7b36c0d3ba2961. 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/SE6XW2112647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd27d89631cfe76da7fa03e7a2662205f140b12f21d9e22cec8fc42869abf0ccd. 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/SE6TI2102786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5b3b290d64fcca8b1be67778d8925d99e4c8c52031679720ee9a8723ea0d4b9. 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/SE6XW2132277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a9278f11ab8884f90183d5411e68d44bff7605c76eebb7cf4d546fa8ce72f77. 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/SE6XW2132278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63246ecf8c8b5ec1d0bad1083ea81903e894cf3653c8307430dc74d991174686. 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/SE6XW2132279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa06ad6406721abfd319e2373ad9f754fab465060aceb36d60016aff14e808ba8. 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/SE6XW2132280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ba7e89f5467002ac8a3c84d1a98e3f0729cd2a04fd58d04d1079a32259a7975. 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/SE6XW2132281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9e5c77ff7130b739d50e3d48106207f05ed6441736273dfea4d97ffd8533348. 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/SE6A91955892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a5238f35facf19629a621842a4e2dc76fd4649fa519d99116719f44d31ee6a5. 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/SE5BU1910720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabad4a2c4243a27aa2f635ee249d9bf04d2c3949c5a25a501dd707f202391af3. 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/SE5BU1910721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb6b71fe2ea02088baaae547a1fc83a865cf02b79ef61117731e2405d77e9398. 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/SE6A91964891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa326adc8333896fa94830c4a84a33e7fcaa2271878c7b206460d1af94f9f3d44. 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/SE5BU1910717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf11afb766e3f3b3e313c625c8594d7050dd2c041e757844ba762f638abaf6236. 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/SE5BU1910716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee5910b7beb457eac63cf143802ebf696c8044d7e48cd6687b707940c34d42e5. 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/SE5BU1910695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91c75ae062d64d861912cfc5d8787d2bbce9e87f386944c2894c1c0534e64811. 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/SE5BU1910694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x821cb53c929c96dedf67bc62bf151050d328ff70936d31a4ee883ecf43acf616. 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/SE5BU1910686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe29e4818005aff52f884550d87462cca3243eccea6a5e22f376e35f14a95cba3. 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/SE5BU1910687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11f762ef939a13959a5d90aeb0499e3228e9549451ba9849ff2c1622b2c15167. 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/SE6XW2245620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x333cb7593107f97191e249ab268493be6f9667969ed29e80cf2559d48f810d7a. 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/SE6SA2212531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7f67a169b12726d509bffda3e025e6c8456cbd7b2f13eb45982e17ac3988319. 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/SE6XW2235125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8c7c5c65656cc81dfb3e9e3eba1e0d2c38bdc1ee20bcc7a0f27da321845d279. 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/SE6XY2296122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44aa07ee8e04b1236000eba31bf9ebdf048b32919c5fbe76c8b5bb6fe9df186f. 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/SE6XW2235126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x333cb7593107f97191e249ab268493be6f9667969ed29e80cf2559d48f810d7a. 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/SE6SA2212531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8c7c5c65656cc81dfb3e9e3eba1e0d2c38bdc1ee20bcc7a0f27da321845d279. 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/SE6XY2296122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2146235184adb1a03a421ea0e1874b68cead617d8ad0e7faad7b36c0d3ba2961. 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/SE6XW2112647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd27d89631cfe76da7fa03e7a2662205f140b12f21d9e22cec8fc42869abf0ccd. 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/SE6TI2102786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9e5c77ff7130b739d50e3d48106207f05ed6441736273dfea4d97ffd8533348. 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/SE6A91955892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb6b71fe2ea02088baaae547a1fc83a865cf02b79ef61117731e2405d77e9398. 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/SE6A91964891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52a9a8ab004ff4641eab211f57a03cd963dfe3f82071c3a37594179e382f0d60. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/SEYOK1802902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd508d39b397a88d6ca8ec7e85f35a5b0c937f994f2c4ffba85bf69edf79949cd. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/SEYOK1802903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94870d6d1d5afaa0994a6a96346b461dab15166d3886c6373f4fa76f41b0ef28. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/SEYOK1802904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75c8ccd0dcd347f3eaf6704823209aaacbc75c4ba3a81f62a40ed2500648a153. 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/SEYOK1802905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fb56d31c51c09e3b9e784cc200112139f886f7ced0d2df16b8aff0b80762187. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/SEYOK1802906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7afc185c704cb10ddd94d0065dca4746c69d61893e9cccac8d6ec766964832ac. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/SEYOK1772023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9563781e29af3ab3610d06dd9dcebff0cd64f7fb8173265dd05e27bd24c103d2. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/SEYOK1772024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10f171ddbf24434d30a0f2378e4e97c888486bb8552406a514663585dc96a538. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/SEYOK1772025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc34a32ee71ba7b41b7cba2abb00a512db7c733ba02ac52977d49002e3b47565e. 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/SEYOK1772026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe10a4851a49ccbc173b30b1594e26be808913c30692cc8184a80727d0a4f35df. 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/SEYOK1772027.