The Sweeplings is an American pop–folk duo comprising singer-songwriters Cami Bradley and Whitney Dean. The two musicians met in 2014 after Dean's wife saw Bradley perform during an episode of America
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 0xc85d22f324cae3313e5c272d91793cbef1f7bc8460a590a7be791f83dfe5bd97. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c73e928c-67f4-4da6-8f1e-48261d84c0a7.json and https://artists.proofprofile.net/proofs/artist/c73e928c-67f4-4da6-8f1e-48261d84c0a7.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 0xca731bf03603a1687f785f3735274a9310b16a1a3c746e51cff34acd03aba9aa. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T09:08:38Z), 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/TCABZ1476609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dd42f8558a030dfc5d83c4f548a39a06ddc342fa57db66f434665f92a60e476. 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/TCABZ1476611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49977c90daf84825477d028553322f94ed9149ca10166da292893d4c673b327e. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/USA2P1680500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4bcd24f5974e38626101c14400cb037d68bd3105c616af05c26911dc691b56b. Chain 2 (Bitcoin): anchored in block 958680 (2026-07-19T06:04:14Z), 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/USA2P1680501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2192660e67f757960af4c048c1c8380cf99659ce5e8fbc3fd1fe0eaba0bac91. 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/USA2P1674509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa35329afee6ac267b0579adcd839675ffbefcc0b50fc9b503412558f6d35dab7. 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/TCACG1583285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7078902d0472f5d64f12460674d251ea595e8d529be18ec24db36d771afea4e6. 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/TCACG1583288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6769a566d4b6f422009f173a0bd5f3d6fa4289e4a0d90d5491a1db5d56c819d1. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/TCACG1583289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb22e2871e3ff3cc07f616c662dc1aa1854c7e983be8db482a3a04cb7a0cfd34e. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-17T02:10:48Z), 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/TCACG1583290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd30022d1a3f79c7fa03ebbf1f81ddac8828ab3609e55192bdbc420f483311bd1. 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/TCACG1583291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x473f601d9d74b34b34d2fde69e84b87dcc22809a7de2462ec8029a210f3f7dd8. 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/TCACG1583293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31809b7e5d4e15b3911bc3005871c820598622c1d803f39dcd99ed7742dd81b6. 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/TCACG1583295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57c5d9087ded78abdfff74118a949fa010d1dcd6e8d494dd04db611b9321b760. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/TCACG1583296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c475bc29dd4fd69cdada51280ea7c5bc437b7b74056c47d9ca0e1cfcf6c968c. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/CAN111700079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x927e2fd8d00dfe153f65bcd8cd3bca6987acfce773a8cf63438203879f7c4c9b. 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/CAN111700080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x750e4bfbfa72bc4789afed1f945b5a2847427f5cbf3686c7be65ba59e75478f0. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T16:21:50Z), 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/CAN111700289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65b8bf8222958db16d35ac5395de3b271edfee043644a25275f8beb5dd4114a8. 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/CAN111700323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1801f0eb250d39cf17f163e74df64a3c2ecfa6d23939dcbd66eb152803a0f61. Chain 2 (Bitcoin): anchored in block 958878 (2026-07-20T15:08:51Z), 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/CAN111700325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4cb9a3c0ff1f8ade1ae304dd439483a722531b7cc7ca3410470c3b1ff7a53ee. 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/CAN111700399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac611eaced294efa17baeac3bdcbd303ff0f882115e4b04ce81f055f52af9d1b. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/CAN111900360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ca037f6705711e98c96cedb2f5701d0902b29492fe62028cf9b65c26d10841f. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T02:47:11Z), 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/CAN111900362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a16aa28ade128bddcc02d5ebcb91f2e69bca9dcf19836c27115a05d767f97ac. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:46:39Z), 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/CAN111900364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad178fc1fd58ef77cc94cc7be9fc0ce7afd61fbe4335075ebddc41fe11d9bcf5. Chain 2 (Bitcoin): anchored in block 958992 (2026-07-21T12:05:26Z), 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/CAN112000193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x726562660d9b434e4e1ae55755d8da5e76a68a56ef44b57229d44b565d0702f1. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T18:23:40Z), 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/CAN112100597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f565ea29e4300ce6f7802929a4edbeae3292d4d670751ab47f9bc207317dc8b. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/CAN112100650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde8357e272a2729b9a239c89b11091e4fab938c0b1905cd09691a4501dbf6ecb. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/CAN112100651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6b1ad4ea05661c67237c3ea3b9124333422ae47c81327c142600b69a76f6e39. 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/CAN112201259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x787126d0620b7b696f3b8f24d6a2eb9267e29b5120ba86f99f374f692f759481. 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/CAN112302043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x199351b9ed58f5902ee9c55a6872ed96bccd3b27aa37f24c2763455a401fac21. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/CAN112302047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20543a61ab76fb321ba4e159e223075d5124a1d2fbfc7e52309304312cb52503. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/CAN111800332.
It's the Most Wonderful Time of the Year
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd8e7f20fc07c88a2b0a32aa3284fcad60809fae477179f414b217b03248b08f. 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/CAN111700402.