Sufjan Stevens ( ; born July 1, 1975) is an American singer, songwriter, and multi-instrumentalist. He has released ten solo studio albums and multiple collaborative albums with other artists. Stevens
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 0x6aef563f73922a22508d8335a3380eb0cd740b8d64a1be6db161adf65255c18e. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/96be9b1f-da50-4665-9e25-0cf571b7063a.json and https://artists.proofprofile.net/proofs/artist/96be9b1f-da50-4665-9e25-0cf571b7063a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Make Out in My Car - Sufjan Stevens Version
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 0x2859786aad5511d4dac21d3fa64fafe6c9af7027ad952bacb9f2acc70fbb25e2. 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/US38Y1833204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x673b050542b54b271051662de0f17e249ad3cb729a1ba2c36b660da39b8e4089. 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/USQY51622613.
Give a Little Love (feat. Sufjan Stevens)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x999ebab6cd9ec13d8f9370e722bee1903129aaa18f7f2bf4231139d2d606332c. 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/QMB622001403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x999ebab6cd9ec13d8f9370e722bee1903129aaa18f7f2bf4231139d2d606332c. 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/QMB622001403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37a9fc1593e067a734541f5e4c6916b5df035e00e3839d416159c2ed858db33f. 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/GBAFL1700074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63e721721366de180f5d0a443cc16092afbdf984b8fa345d7e1f179bc14f2c5b. 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/GBAFL1700075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb34a69466dc723bbfd1606edbb69d65da8ee64e6af2498dfd01021cd4ba33969. 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/GBAFL1700076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49da00d51bd8ce6cc6930e7428d4a3471299a17181091ec38331a32e9e759f97. 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/GBAFL1700077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcea698d248c9d66a1033944e00c3124a007d50d448d9219958636637bdeb5a5e. 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/GBAFL1700078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x021245301b23b0d11550ad8bac4e76b10151114124d9a9e8de297118b9860ac2. 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/GBAFL1700079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7bc07c0226496876559af1ed1bdb273cae2602ea8ca2a649a16bcfa766f11f5. 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/GBAFL1700080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c0826fa20d203ddc4d1426013021e2826bd5fea6cbe46f97c00141fcf1329b9. 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/GBAFL1700081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5da5080879be9776bbc51bc8e136f3e268fbdc7f9e4922b53224c2a71a2e2f0. 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/GBAFL1700082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb34bef74a156030d78283504d13f0c10d16e24e53be5065093315ab85c4d0c05. 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/GBAFL1700083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e764db6c27a881cf24363fc0adf147ed0a24b94dfa794b318d5f0e725777e35. 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/GBAFL1700084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88c4a1cae5c51ea08594c2e46d48d46c17515f7e711aa471ecf52037e47ea193. 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/GBAFL1700085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcedb8d832f2260e1a6d8cc5e2fd53a975b0d5505eec68d7c337b88c98fec4d31. 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/GBAFL1700086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfabd2fccbc0a50eea2f27ecf845e40f2227bad5212f0082880d42caa970d149e. 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/GBAFL1700087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37ac82992ae6b3e8b6ad4130b360ac2dd797b737b8fd035a972f6a15df5481ba. 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/GBAFL1700088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d734d3e0e93670a641a55a57a3aca1be6f04369f0ac9fb67cb60a32645455a9. 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/GBAFL1700089.