Christina Victoria Grimmie (March 12, 1994 – June 10, 2016) was an American singer, songwriter, and internet personality. In 2009, she began posting covers of popular songs on YouTube. After releasing
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 0x2a281e2b6c263e9e19113b155afcd5c51af725d83d9e487b7572d70778e1c024. 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/5160363f-fe04-4be3-a437-cbde029673b5.json and https://artists.proofprofile.net/proofs/artist/5160363f-fe04-4be3-a437-cbde029673b5.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 0x3e0c24375ae3b4d8282d2f0cb7b0e53f023e95852e2ff214bd60c49e247485fa. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QMWCW1100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x474584e2cb8652c93d17b91142ecb24d97121b49d2f1aa851122b9109538e8ed. 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/QMWCW1100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac26e535c558b5135e6c651f1c490390e7a83ce86434cb765d26995434e69aca. 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/QMWCW1100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e64c03e183a0abda4311ebe104eebca64568a088f62e98805cf87564f3b45d1. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QMWCW1100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x964fc21dde8322592d149c6c561644f37067309467e35fa754a53896336bfc16. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QMWCW1100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3383cd7d42dc84a5f899890659cc93ce176837469fb9bec21d360c0af7f2c7cb. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QMWCW1100006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf77e567f8c817295c37d6a62200673952a515649114a096ed6ee7bbd74a58b83. Chain 2 (Bitcoin): anchored in block 958617 (2026-07-18T22:07:13Z), 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/QMWCW1100008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2df3b2b1666028f3aa124e7109fb376c4622ab4c4ab94255947d7c97888c406. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), 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/QMS1Z1300016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf18862e749b87c3d18c0929dfe586b4dc84fb2d22a890e8bc5ede1b1a8385372. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/QMS1Z1300017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c3f0d015f688673f0f760527ccf1741eefd5de9d019f598dee1928c871084b9. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/QMS1Z1300021.
I Knew You Were Trouble (The Voice Performance)
Can’t Help Falling In Love (The Voice Performance)
Hold On, We’re Going Home (The Voice Performance)
Somebody That I Used To Know (The Voice Performance)
I Knew You Were Trouble - The Voice Performance
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ee8f3445a3f04486cb3a79cfee7fabae15a99282a9a032372c7de6f76bdd65d. Chain 2 (Bitcoin): anchored in block 958067 (2026-07-14T21:26:15Z), 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/USUM71403607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77296ddbc5ee3a02a7a0c684fbc6969b2bf7d62f5dba8616bc5c1b3dd01cc4c1. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/USUM71406430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd47dc3a97bf7d098b1ca3939b0f931e8d15767329307fc0b423c381eab1effdf. 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/USUM71406433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31d5876dbd8130e914dc19ae5ad14cf61c4229932ef347564736e55faeee76e8. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QMWCW1500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6960421bf361506e6f090f19385f7bb202254d7bab0c08988ce8399019a04676. 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/FR2X41562006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7edb7fcae091b99aa3d8eb4511760808173c4b348267530e3b55288306b712b2. 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/QMWCW1500002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd20b7c9faeed67431cfca62995243c69ce526a5c61c5ca44adbe10ee00399114. 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/QMWCW1500004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7c2fec7ab4b856c948671841a31755d584a15955e9b970de1f595762bef0c7e. Chain 2 (Bitcoin): anchored in block 958889 (2026-07-20T13:24:39Z), 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/USUG11700266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe77200231b5b6e66ae8397bb23f022cd3cab701d2e3b54eb7793dd02dd65545. 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/USUG11700815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdf0dd89b65fd1b860631c97760d78da99e3f1ded020518c6f675733e59b2eca. 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/USUG11700816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e6290986a1ad403bcb92fcb5b996be9636d05d6a7dadc0e7f00c9f1fa94ee29. 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/USUG11700817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf1e62fac3e9599c4e6cf1df9c08047110872a40741ed0797919b411b2913dbd. 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/USUG11700818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa951ce86a688f64c87b8fdb90fd81e7c72a4a7af63dbaa9dc1fdbc2c949de60. 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/USUG11700819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffcad8555f2f42c0e2b1fa890c9ce4128cecf0de8243f1de3eae64b89b477404. Chain 2 (Bitcoin): anchored in block 958506 (2026-07-18T06:14:51Z), 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/USUG11700820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc56c447b86aa6b8e53fe40ddb28a999fe3d67080ac58ac7c4b082ccc8a0328a0. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/USUG11700821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa48f628c3882b6515bf62239f4ddfcd571f0547e6458c6a1c2c33a23f7b22942. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/USUG11700596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf54574fc47a3d136b52e792e7d9577b3364fb7db0bfcf71bb00e882d113af329. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/TCADK1700834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ff3fca1a239d3e6b5c4a8ea547ad13611a9f5b5cd84602a7171bc9ba925ce3e. Chain 2 (Bitcoin): anchored in block 957876 (2026-07-13T16:00:32Z), 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/TCADO1851510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a8ec91d0449385968bea8e9413c14e85eae9a0a554c123f23cdf1a3fecd5e07. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/TCAEG1932019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ab24f0c7b00c9da085ec8f6bc5c14821b65bcee5b5ea86e049cba76c68e6fb1. 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/QM42K2181926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1081e9f3470c08cfead608040ed2896b98d1d01984e438e73e9404d009cafc7. Chain 2 (Bitcoin): anchored in block 958673 (2026-07-19T05:38:28Z), 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/QZMHP2018785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9238afa2f067f4f783c45676459a48e29cfcd3f91fb8ede2c6c126df20b30ddf. 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/QZMHN2061859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa981eb0d89bd61e6f95984590c88b33cddc49fdd4c084628d3b2bf5e1795a9e7. 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/GBDMT2100102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8c8037fcd2d20fdc080aa9595df265529b253320ce5ea3761b7cb9bd720b2f0. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/QMFF92200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4b18735399403375fb1b474583fceeae8f24550dc79e80184e935bcaee78617. 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/USWD11569832.
The Matchbreaker (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1b40cf67a8aebdff883e731c0b8766cae4a2ddacd402482e6a69a85e88a64dd. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/USHM91623291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1150ebf8e9ee3d7b6e711ab68cade562ad0e88274fa2599a4c3008beffd4ea0d. Chain 2 (Bitcoin): anchored in block 960193 (2026-07-30T02:05:19Z), 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/USHM91623293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf51406c8459db484a2e5a5e133fac919f5bc988098328abe24515d932e9b3077. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/USHM91623295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf369c0845e87cba5760928bf8a9a0f9594f437a308d278863823317dab6e406e. Chain 2 (Bitcoin): anchored in block 960193 (2026-07-30T02:05:19Z), 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/USHM91623296.