Tepa may refer to: Stinkheads, fermented whitefish heads, a traditional food of the Yup'ik peoples in southwest Alaska Tepa, Ghana, a town in Ghana Tepa-ye Olya, a village in Iran Tepa-ye Sofla,
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 0xd19843be77289e9eadf762a5727b42a3dc601288eb508d3e5864e811c7aa4eb7. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5b3c404e-a11e-4839-8b57-c297de0d2ebf.json and https://artists.proofprofile.net/proofs/artist/5b3c404e-a11e-4839-8b57-c297de0d2ebf.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 0x35aa058832ae76c9d8fde92fac09adb1e1a30f9b7cf4266ef96e11a1c84b51ee. 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/QZMZ92055918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1abc030d1c9f427282ac860a1f26ced3d9c771a6544eff73c1bc793db81912b8. 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/QZMZ92055919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x245c3e6cd48cbfe3e4023287120d1f749c267961cadbbf8af4633ca91674c5ec. 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/QZMZ92055920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72b7d8d97178436c273b7ebc9e66254a01c7b883b14f54be0fe84bb1e5cdfb52. 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/QZHZ62054785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e915831bb8ceaa2064a88c8ea50f12d76a2349db4d5877c037a333c2aa5e0a7. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QZMZ92055921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dbe98401b71847746c710ce51b5f7e55cad4248f7eb17f7d0e384721e1d3b6d. 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/QZMZ92055922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e2dc1e7f18b46573ae85d8a85e0b7e232538fbff5d3c5e77d9ddbf7eaac09e9. 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/QZMZ92055923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96a60a0804e7686a6711a5e70ba32d51588656386b8d74348f8edcacc77a39a0. 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/QZMZ92055924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5c353439a8dcd16c42f9de152305a15fc95e3dfaf516762d2da311f81100004. 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/QZMZ92055925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2801db50121e4eae8ee7418df280ab50ee0dad7d66db9da1d45b49b5717643c9. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/QZMZ92055926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2288cce3f5397a2f309d1edcb4ca654fa02f5b9640724c9e491882231d91de4c. 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/QZGLM2009234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77a21c58e71fd7c4a99f2a5200483614856405fa4fa986e510ca721e92c8bfbb. 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/QZHZ61902379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb75b9bc0ee8fa9f712ca24ac4466f7890fea8b2c9701e636d3705753c825e683. 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/QZMZ92055927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x371e2885535cd9d6035e36a200c152d84ab071215201f440e02ece5c53f668d2. 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/QZMZ92055928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2f387e4b9ff06fbb45d10589c1771a99d17aa6ac725c2841203ebafdfce79fb. 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/QZGLM2087186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf55c179ab521db1197d48e2fd17a7db6a1b53ce7bf755d108d29b2cbf149386. 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/QZHZ52085069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77e59097adf974967698459e5b040be474b45224191d7f3f21d5affd6dcbdd9a. 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/SE6QE2338928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e1b6434f364a553eabb60ee0eed54d87a768d21c9a4f33c88560504c9066dd5. 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/SE6QE2338929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc5ab6abb513d5fdd1c7a3fd519b70ea8f5510e9d1088f5a0fc19fb6e95f7abf. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/SE6QE2338932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d3340c2f94900cf656d702195c89e8b3fb57961f6bf2dfc982ebeb56cd9006f. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/SE6QE2338933.
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 0xea91b171f847131ee11a3dc25b255ebfae892defba325780c1dc405ee8723501. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/QMFME2021781.