SPS may refer to: Law and government Agreement on the Application of Sanitary and Phytosanitary Measures of the WTO NATO Science for Peace and Security Single Payment Scheme, an EU agricultural su
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 0x0c5eb916dc1fd3aa9b637434eeb46be4f61e3ca0097f8ddf4d723bc0c1b76ff3. 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/1211a57f-e569-4e3d-ae91-25c3cd074198.json and https://artists.proofprofile.net/proofs/artist/1211a57f-e569-4e3d-ae91-25c3cd074198.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 0x60221e09ae761d724dfc180c5b7161ffa7e4bf2a20a43e29b08918a4a2d08ce4. 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/CZA163377806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8771a52e7424da8075957aaede5baee90468aacd7bc57f50970fd0768399a237. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/CZA163377807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71197768e1ccc6af57a11b7abf2196bc04b952366a3d459cb2345a3561fa441d. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:52:41Z), 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/CZA163377811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd5582094d02f5ef13b84f764fe8f862640a4afed8eb752c6fdd413d91ecf9aa. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/CZA163377813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b8cf15990dd3f732821abd194defd14664f554ddc544af7dc395e7bc7f3a738. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/CZA163377817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd50cb6a2731a6b74148dcc9385846fcc4d88c239665e365073573682ce6b5d8. 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/CZA163377820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd1f5c3ad993eac4f4e533665f6de3f8506cc78f0f74102b42588107e058e6d6. 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/CZA163377821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37b3ac9173cfed82241ebbfe50b009101be662b83dae5b303ad6959fb18630f7. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T21:51:18Z), 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/CZA163378054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98e797e74524ef1340bca89d6a750c165089d0c095c10e25e08ea27f831e27e4. 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/CZA163378063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7d6b142c88319b981b4833269a03ea5ed425b81937b820436e80f2451bdf158. 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/CZA163378064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca8cb4ed27c7446e9e32315ef0d7d33f258b611342ab081e0f1e615f2ea1b33b. Chain 2 (Bitcoin): anchored in block 958476 (2026-07-18T01:26:56Z), 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/CZA163377795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cbf5e1e132302816b3bd3dafa012aea3ad68a06c17a2ada56e9fec6ecc8a659. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/CZA163377796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x573101c918ee8f3b363dfb3396609bb1cb9df1716f2db0577849e1a8022f1eb5. 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/CZA163377798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeadef6693d2b53eb9ae4457b18efa426a875e31dad1329b06fd0cdf1eff64e26. Chain 2 (Bitcoin): anchored in block 957541 (2026-07-11T08:23:18Z), 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/CZA163377799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d3b4270270f7b55bdeb608f0ed79b8faec63e91291b8d292ff2862115d5f1d3. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/CZA163377804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe87359e428eced97f0ad7a5f1ab3b69255df79febc02d7d88a699279cd8d14a. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:54:40Z), 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/CZA163378087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ff97d90b94c2e00986dc370561b803eef9d4df028424668a8c6fd28a75d4697. 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/CZA163378088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75e5a228bd761823f262254d54be4def0ac9f34538610bd3cba77976904ad76b. 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/CZA163378090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca817256df787663f8057e19ca31671ed457ad3c5a374b88fdf8a89bd1b32846. 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/CZA163377782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf24dd86f4eee99cfc692941177f4b1906051bdbd238012fdc7f42a2f26dae56. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:29:40Z), 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/CZA163377783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x603a5931f289d8809cb2658eccb49b53c7b3ea7835ee559362e06934a7dc8cc8. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:29:59Z), 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/CZA163377787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x784303ade9b2a56bda101d45de6dac703b57e979e9d469568088b50d87ba18a0. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/CZA163377792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5e651138012e357fc6385aef04c56d2c304cdb1577909b3f93635e7eaf7d2ad. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/CZA163378101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad59930f8731c82f6581c4450e65a6c7036f814e835e87ef173ba8aef8f53371. 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/CZA163378103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79704035f96507b5914bc088a8f00e58ce28f9b0dd0d18802799f2ae1f64b3ff. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/CZA163378108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef5155f6cb2c33891944b3a6ce698999f0b6f81f9cc4332f3cf896d67a7b5c4b. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/CZA163377772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54e271f0cb39c9d9b601c5110fefee7c779fc7e02ec1052a101692896b6a7637. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/CZA163377774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7db9bc7a2f6f8754c19aa0b4c8f59a0849952355805f4f9c37ba412ca1d219c2. 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/CZA163377777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ae78bf5c106ff07da84a7f05722c09fdf148e79f8526808cf2484488a751a06. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/CZA163377780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40e6d57a67895a75f1dd69ba0fecce9b031f135ff781fb529f809b84157851be. Chain 2 (Bitcoin): anchored in block 958051 (2026-07-14T19:14:42Z), 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/CZA163384659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b7e02db8b026e5db7bc148af1e448d23ed5384213134cf6da40fc387c53c3b5. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/CZA163384660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc41e331164162c904bb4569c2e198a9581d951d6f1b47c7e7c057f95343b8cdc. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T09:57:26Z), 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/CZA163384661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbeaa163228cdc70ba4481f87c295da1b4b37778b8d391d6d4fbd5277e2bbf45a. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-16T00:07:55Z), 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/CZA163384663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3decca3b5751861abcc69920665abcf828a578d46652725512a950eb6d184516. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/CZA163384664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e6a08e664be70f5fb0a1543e2366347e2eff5018ac3b330df03d2dace9df77b. Chain 2 (Bitcoin): anchored in block 958531 (2026-07-18T09:39:18Z), 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/CZA163384665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4fe62a48907284848774de78d8c289214ba528b5f06d5d144be52d171acdd8e. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:05:57Z), 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/CZA163384666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5e7ff2fce1733816bd8d2d8093097369ddc1f717e8bfcd78c3471124a3a430f. 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/USDY41529960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f391c7042e43315ae34a120687aaea07ef8fada3b41dd270a16999135e50890. 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/USDY41529961.