thumbnail|Salvo at Belgrade fortress A salvo is the simultaneous discharge of artillery or firearms including the firing of guns either to hit a target or to perform a salute. As a tactic in warfare
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 0x2b6c1b7a6f38a3fc156e6ffd394c8a4fb5b1d0aa55703a2de7840923b76f2bdc. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8f017078-f709-43a9-a567-4013206d162c.json and https://artists.proofprofile.net/proofs/artist/8f017078-f709-43a9-a567-4013206d162c.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 0x701dc5cee9ffc49a099b92f1a5ea548fde5faf06c3cf655219554b794bc6254f. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/CH9061505068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9d241d64204f7281a801f16d1646b2ee33397809cd7d45d708d6a992527df85. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/CH6540825841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac4906ce6b08429924d875003664d41a6f219152ea2d62cba62182af36b59327. 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/CH7811501920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0cb35fb9f18c21f4a641ab0715d3b43bb81cdc4c545ce7472ab331e37c471a5. 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/CH7811501934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3f62d026ec31d385a28d160ff5bc85a0227700e3b004417d943dbf5a99494dd. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/CH7811501921.
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 0xd779f11523b71c7e609581c6094e9e9b81a2e469f17cbcbc77a6feeac9c3a380. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/CH7811501927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa11321ed3d30767118aff672d456b72fbe94e771afa355798313c2197046b069. Chain 2 (Bitcoin): anchored in block 960384 (2026-07-31T09:54:03Z), 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/CH7811501939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1855a3320b7ba90e49230a1cb716822e20da04a915a1902e146346f5e201c452. 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/CH7811501687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e228a7394c2829fee2ec88cf1b7be08b3fb7fca7d3b1481568738cc8a854974. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/CH7811501690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ba16fce5b043c1a58f1aed993e3c12969499b5ee94d0bff4333e78a5f6fba67. 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/CH7811501704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e0a9c7052b9a3b06c0290ec40857475955f60c7d22b4c7e90955a7f530c7b47. 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/CH5331100098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0368d38ebd8ef8ddb4c69466d20b0e0e5bc556029be5926426b2ea3baead19c. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/CH0200809577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77492376cfe48d32ca5421347a0054292ff65d962907da68c223a9107e8aa985. 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/CH7811604678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30c327ca6aad319dd2a21e9d593900e44aee5eb886dc2436e565f63fe5236dc4. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/CH0200408513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93d8c798713b06204429e6211f42eedaf3b0ab737c74609f91069853da8f5bcb. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/CH0200408507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d82b39ba639290ec8f31669654aad013557985c33edcbd639960f59ab825005. 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/CH7811604584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x531581c40353dffada13b7edc43b476c687e90d12d217d87b1c952d8e5e6c45f. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/US49M1000029.
Used To Dance (Dandy Hungary & Invoice Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7c03918193fb940302f7b3ec7782cc1910e49f3b6e0deee49215db7a7ff71f9. 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/DEAR41055947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a0052c4dec41317929aab60d9043396f5a4fda6a7506a47c0f888237943b3ff. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/CH7811604681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e4503e4f01816c5a221c93ae80ae7991f61521f845c41387ed806c5c3cbb123. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/CH7250900015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07d2b546282f746bb55108acb337e7e73b98b29a20c664a2f212f66a20ce8043. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/CH5430900192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x858e472e0927534181563a25a0cba87bf425f3179591c2097286869bb3778280. 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/CH0201511818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b691fab0512a662d09e60e4b0e184ad6a084373ccf180e5877cc7442cb61b91. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/CH0209505413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x389845e87b6adf0765618557a54f69c74c0d388debe749b55460dc667ae722fe. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/FR6V81739817.
Claw Summer Fest 2014 Compilation (Essential Dance Tunes Only for DJ's)