Loser or Losers may refer to: A person, or people, who experience failure The unsuccessful social class in winner and loser culture Film and television Film Loser (1996 film), an American drama film
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 0xb740c5aa03c032cddfd30ee8064d37e11682c835c4d345d0de180299d42375de. 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/6f81b3a0-47a9-41c6-9798-f4e9df753f14.json and https://artists.proofprofile.net/proofs/artist/6f81b3a0-47a9-41c6-9798-f4e9df753f14.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 0xc14d87d697eea5daa276a3fc87dfb1c992c9acee93be63917de85a7ca0d3586d. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/QZ93L1951057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a0bb357e6bd016761e31e904e5c4a342f77ffe6ace546decadc2948dfc53389. 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/QZ93L1959936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32d8bd53297929fa93fd36a2beaaffdc62ab696b6b20c9ade4a028887331e520. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/QZ93L1968575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1775c0e194d538366c230e106033fd837d6cfd9902e827a5d4460abfbcf2604b. 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/QZJG52000430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbea3f7a789adf2c29d046248f8062039b7517b67f472afc1fa89972e8287dfba. 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/QZJG52030493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ed2b93b7712764b00edc65b4bb4ea744dcaa1c2a1ec4263be8e22fa6c9e757d. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/QZJG52084044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf170693df63b20cc6329f8a73fd4943069574aa483278f48d7087ddbd97509c0. 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/QZDA62013488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44c5bc6c597ab650254f63fad96e979b514c0d9905e9bbe24125fda044cba2f6. 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/QZDA62013489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa40d3355d102636f3c3dd7a83a146d134767a5748073f318aeb694c7f97becac. 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/QZDA62013494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2264d60a97cc4632bdcd8f7386dde8ccd0fa654d185974b44fd9fd7cfbea9fdd. 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/QZK6Q2019500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10bf5f8191017aacc49050922db67186ea374f0ed4800faa7607e90268599d75. 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/QZMEP2023897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb140b441f58166320393f4d634d825f5f7546bc0687a5567cfd11744fea45fa. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T18:54:07Z), 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/QZNWQ2023054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e32751e69aead15a030fdf15c48c3a072ab9ad32b8a5f4ecfc7351e176ebc71. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/QZRP42239591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13ae00a7f9edd392eb8be942793d8e855a17afa9c7ece6c9c3d89cb360626d5a. 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/QZRP42239592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff2866cf27391f85d7b1218b41e07538804552e45fe157ae9a204bd20e41b1c2. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T19:17:28Z), 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/QZRP42239595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13b171a73a1ddf5a5cd7874e347bca0ad4309afd8cb6cf6af6fe9f89eaa93ee8. 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/QZRP42239598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f3235585413b0cab8f10df32a93c8bb5aa88f465a49a0e8098dcbad86642e32. Chain 2 (Bitcoin): anchored in block 959013 (2026-07-21T13:39:11Z), 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/QZDA42319943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b40565c818bd5ebb7fc08b2332f28bcc2061ef34ef0d931530710027fb9c487. 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/QZHN52310217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49d482be033d053085520e65e10414b16546c5d6ff35c5a221bad017c0d44bbd. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T21:05:52Z), 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/QZHNA2308684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00a00bda4369f7f62774f8a98e2d092ee6accd28e1c2a8670a2b06450d63acb1. Chain 2 (Bitcoin): anchored in block 958529 (2026-07-18T09:21:41Z), 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/QZK6H2398813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x789647742c46f1d61b23b003d4e75f5f605c9508af9138faee557c66cbb72547. 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/QZTB32378520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdece1a56e4fa663901523bab81d813eadfa6d4d85ad1d7eb1f48cfaaa1401b9. Chain 2 (Bitcoin): anchored in block 958535 (2026-07-18T09:42:49Z), 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/QZTB32378521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbef8cca030c35ad78c3f53e38b9d333a3498db7bc8db09c171e69c6ac09af438. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/QZPEW2443782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57b3ebb3490431fc14d435fcb98d91f868aea7cc1ef69525770f88a41123c0e5. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/QZS652101571.