Nat & Alex Wolff are an American pop rock duo from New York City, consisting of actor and musician siblings, Nat and Alex Wolff. The siblings' musical efforts were initially discovered during their wo
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 0x6045464a584415e57cbbdf63a9fa821db5a35dc3d5740faa6689088827221b5b. 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/662d4cec-9111-40df-b63e-ab704feb3000.json and https://artists.proofprofile.net/proofs/artist/662d4cec-9111-40df-b63e-ab704feb3000.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 0xe6d7f1898c753812aa1502de5d8be795a52c2a8eac1b110e38145f1a35d4615f. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:29:18Z), 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/USZXY1101933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa837c9d381a461d48a3625a6cad3c924699373c1d411e24d4102df1606ffabe5. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T19:06:16Z), 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/USZXY1101934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6209a1bf3337385f70960d98fe7e524653b37728e9d7ae13562c0b1637eed44f. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USZXY1101935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8a97118696c732a5358e9375d23bbb236858a3e0086af4fc4d25136a461f534. 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/USZXY1101937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cdb5f246f35e7ddaa917b9d86317b1798271e224708104f4ab2427b15205c06. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/USZXY1101938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef2c1ff993e15fa7e6ab6c4a7d7fb52be52ade40b78db09467624ac56335e27a. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:39:51Z), 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/USZXY1101941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x255bc4548a61c5d9f151df03a301f87f97c912dd3f130709433ebd8ef5bc7cfb. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:10:09Z), 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/USZXY1101942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81ea005199779a0f922a20f48657e45cfaf6eab82165253e5a9607bf95fd8ddb. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QMCSG1400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedc26a06b9ca5108f35bf2affc612cefbb905ba9456ae55b7023f605f8b632ef. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QMCSG1400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd433046c1f88fb118c954719efa8de78f9d048309848b82fb8127300b4de6483. 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/QMCSG1400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46f3aa7aa6f36631a255df579f7ffc13fb56c485865bdb4dcf8f037a38b05343. 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/QMCSG1400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4134dad92f82187aa69b513d3fa6fb45b3bcbdd34bb2ddb52b24fdc469a13858. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/TCACT1684324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacc2f9d8536c02f864e4d3d69cabd48a24eb100c28928fa0811b851b9eab5c58. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/TCACT1684337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6db3fb8e81c6bc0fb43e56b7892b4b86810b322e92958857d549fa512fbbea5. 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/TCACT1684345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x011a64cb8211448941aad6f77c926e36254cc889929e39b0de9ffeb127b7c8aa. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/TCAED1996543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa5ba648f10c6f72eaaac96624411c2d4a4e2bf9ec1dd051a05446fcdd240536. 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/QM24S2204037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b800d86de3df05269eba6d495d3868f844f47fdde5aeba103a40aa0b8361a61. 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/QM24S2300097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8043339e253e288c844523ad9c3797ff85d7a08de0e2b2776c50e187aa9904e2. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:52:44Z), 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/QM24S2301160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x821941c8d0b65b44ac9e8f66a0e707c4f37d8592cf13470e919a11484b24df71. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/QM24S2303836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b800d86de3df05269eba6d495d3868f844f47fdde5aeba103a40aa0b8361a61. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QM24S2300097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa5ba648f10c6f72eaaac96624411c2d4a4e2bf9ec1dd051a05446fcdd240536. 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/QM24S2204037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b38eb8c8fa43b376d601d8d31cbde4d4c6cb327915898cb9cd64fcb7b9f588b. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/QM24S2303833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40de5b922141f7694d273f6f47a4d68c83e4ea75d5bf8c68eaaab0565e42b1ee. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/QM24S2303831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde6039421c9a3d6b7f5eeaccb6eb35ddfdfbe088f5a03caf260235a28f3cd106. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QM24S2303830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x275af985a94cecd68e79456d6965fb36779d702355fdb78b9fe6f2c0c8d53814. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QM24S2303827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbad6bbb0064915395b534e12f60812029cea8656984bfeb1c5a2a28667f98b36. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T16:20:28Z), 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/QM24S2303826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4af6edaae757c7773a919698edb11ead1d434c4e304d78e09b37c8bf90f90ecb. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZSYP2474478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4af6edaae757c7773a919698edb11ead1d434c4e304d78e09b37c8bf90f90ecb. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZSYP2474478.
HairBrained (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99842a046ce09f95e1dae9c8dfcd51c6eba441393292941226c8fb911c04e6a1. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USQX91400297.
Palo Alto (Music from the Motion Picture)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2627277055b6a618ea3f96cb465f8247f8c2cf9c0e904f2603b3b605a7b431c1. 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/QMCSG1400002.