Alosa is a genus of fish, the river herrings, in the family Alosidae. Along with other genera in the subfamily Alosinae, they are generally known as shads. They are distinct from other herrings by ha
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 0xe993737f38b55590e7284ccb489c192997f7009786f5c48ea2aafab9f7171cca. 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/36beef99-7181-4888-bb4a-17e47d38c2a8.json and https://artists.proofprofile.net/proofs/artist/36beef99-7181-4888-bb4a-17e47d38c2a8.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 0x2dcb6bc839ccee79562ecc43f4ca84ef314836c6fa360e6889a4985629775de6. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T09:42:43Z), 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/QZZ7K2542593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaec3ff5f4621e145e55f1543ddd26be80f15e9ecd9203e95d1f2621095068ec7. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QZZ7K2542594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80e3e1ad9efba90cd4fcc8df5a1b3398a0da98a303ce37473d951c16fc03dde3. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T16:40:58Z), 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/QZZ7K2590193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ff06e2c193eb0cf037b5f2224a99aeb918b483c65842c470e5ff370ba68d27c. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T06:58:20Z), 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/QZZ7K2590206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75d1706b68df26bfd7ec139ae3024edba7aee98d124a30029c7e824486b57e96. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/QZZ7K2586874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f9f0084c1a311e5c0d2f89818ea83818073af8a73c6a346014ebb21889b082e. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:49:59Z), 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/QZZ7K2590207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0de0985be4fc01cf3b67c6e2f375a3a7a9281d19a789eb9e4c78b4979092153d. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T09:56:52Z), 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/QZZ7L2544439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaccae52891054f65c57079050fa8ebae91aae4e30383ead028a4bbc2a6bf2b7c. 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/QZZ7L2593374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb349b3c581239be3319aa84ffa1ab44b0dbef83cf9624fb69c244b877c4a5c01. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QZZ7L2590936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74ad22a3f1905a13e36b69ebba65ccc8c471c00c3a691a76d7fc167d76534857. 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/QZZ7L2593339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f7a4f7aa75abd5b1e7b5616c0ca5b6d1a80f3ed6bcfdc7d7436f2d675126df4. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T16:30:19Z), 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/QZZ7L2544522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcd4cdc80baa15552c4d5572f776b095b96b230c1cd11495e4438d7ef6ebd480. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/QZZ7L2593355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15812c449d570270a24813f03c177e3d376180759f2c07f84c08ae7a760a899a. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/QZZ7L2547042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc42558036c454998022cf98b7d3c431dcdcc802264f06bc54b7ac847c927ceef. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/QZZ7M2548704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x495e6d70a2cc3a7c6c41971fd021273481eda67cb78cba892669c0680e5376df. 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/QZZ7M2551282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67d9446bff24f709782b51710900503feeb11843ad48e62d25a8dddb2a108561. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/QZZ7M2548573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7798067a213381228fa3505376b8d0483d5a996beb8254fd2df162c4974c027. Chain 2 (Bitcoin): anchored in block 958104 (2026-07-15T05:34:05Z), 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/QZZ7M2548631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x992a65e3499fb238b42afbf91904a1a0d354ebc56287cb22809757853952aab4. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T06:58:20Z), 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/QZZ7N2503982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91db6b62bf11f6fbf996de5d052c2c2ca595face781ac86122b59d53c302b6c8. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QZZ7N2503981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd846058da93207873dd8f220111ccae7ab017a3a17e3431882f63cdca6ab6c5. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QZZ7N2503979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe66dc2b09f3ae083978c4ee845ee0a13888cf6bf6d99931f9942d85e255585c. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QZZ7N2501025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf12780a8d10896d7e3673584d2fb55dbb46bb12baa082d94090f3212d626638a. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T06:58:20Z), 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/QZZ7N2556321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e99f42c967eb36d346245560989610048a216763dea610874e9cf836366cdba. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T16:40:57Z), 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/QZZ7N2559275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf726ba28ce8b2e1d9ad64abc8a82d00f714b234c0286978ca3f243b0678b34c2. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/QZZ7N2556406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9af58ef20160d3d74c071bdd9388ab3fff2b544269f4e95e254f03c45781ef49. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QZZ7N2556234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e6b31e350b9c18b70909f61c0b381aacad15c3e7f532aa3e6e6bfa94b6d2511. 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/QZZ7P2509193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8dcf398360ba794e9748900ca7040b9f2a3d5970afbb27b7179766a1cd09a78. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T06:58:20Z), 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/QZZ7P2509402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c2836ec0cc061ff850d0ed2d2022ec840c60323a86fa99fccfe5734cc3469b3. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T16:39:34Z), 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/QZZ7P2511483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8070e0c328e662cef63fd7f2d364ec26319cedfa03933277ce3de3063347ff35. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T09:42:46Z), 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/QZZ7P2511484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8042ce2e907a17b8f630d1a8629d2ecf5d75636ca222b73089249e55be309a6. 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/QZZ7R2506603.